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WO2025040241A1 - A sunscreen composition - Google Patents

A sunscreen composition Download PDF

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Publication number
WO2025040241A1
WO2025040241A1 PCT/EP2023/072864 EP2023072864W WO2025040241A1 WO 2025040241 A1 WO2025040241 A1 WO 2025040241A1 EP 2023072864 W EP2023072864 W EP 2023072864W WO 2025040241 A1 WO2025040241 A1 WO 2025040241A1
Authority
WO
WIPO (PCT)
Prior art keywords
acid
methyl
composition
benzyl alcohol
alkanediol
Prior art date
Application number
PCT/EP2023/072864
Other languages
French (fr)
Inventor
Jasmin SALMEN
Marie BOURGEAY
Yohanna SANDER
Original Assignee
Symrise Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Symrise Ag filed Critical Symrise Ag
Priority to PCT/EP2023/072864 priority Critical patent/WO2025040241A1/en
Publication of WO2025040241A1 publication Critical patent/WO2025040241A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/27—Zinc; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/345—Alcohols containing more than one hydroxy group
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/52—Stabilizers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/52—Stabilizers
    • A61K2800/524—Preservatives

Definitions

  • a sunscreen composition AREA OF INVENTION refers to the area of cosmetics, in particular sun care composi- tions with high amounts of mineral sun care pigments such as zinc oxide and relates to im- provements in their preservation and stabilization.
  • Mineral sunscreen particles such as zinc oxide in particular, are natural UV filters. They are characterized by the fact that they absorb both UVA and UVB radiation and the corre- sponding formulations are extraordinarily water-resistant. Sunscreens with high zinc oxide con- tents are therefore particularly popular with surfers, for example.
  • the problem is that for sufficient UV protection, comparatively high amounts of zinc oxide must be contained in the corresponding sunscreen products.
  • WO 2008119841 A2 solves the problem of improving the antimicrobial ac- tivity of mixtures of 1,2-hexanediol and 1,2-octanediol by adding 4-methyl benzyl alcohol.
  • WO 2018068825 A1 claims the use of certain benzoic and furoic acid es- ters as antimicrobial agents.
  • WO 2021099090 A1 (BEIERSDORF) relates to a cosmetic sunscreen composition containing a) spherical, hollow silica particles with an average particle diameter of between 15 - 20 ⁇ m and b) titanium dioxide and/or zinc oxide with a primary particle size of between 10 to 200 nm.
  • WO 2022006215 A1 provides sunscreen formulations containing a metal oxide sunscreen, squalane, and an antioxidant.
  • the sunscreen formulations provided have increased SPF per unit mass of the metal oxide compared to sunscreen formulations that con- tain metal oxide without the addition of squalane and antioxidant. Also provided are methods of preventing UV damages to skin involving the application of the sunscreen formulation.
  • US 2012201902 AA (UNIV COLUMBIA) relates to a preservative or antimicrobial com- positions which comprise low concentrations of botanical extracts, in synergistic combinations with alkanediols in a solvent system, optionally with fruit acids.
  • the present inven- tion relates to a preservative or antimicrobial compositions which comprise a silver compound, an essential oil or individual constituent, one or more zinc salts, and one or more alkanediol.
  • compositions useful for protecting the skin from the sun comprise cosmetic ingredients such as zinc oxide, titanium dioxide, butyloctyl salicylate, and a dermatologically acceptable vehicle.
  • the compositions may further comprise additional ingredients such as cyclopentasiloxane, neopentyl glycol dihep- tanoate, butylene glycol, caprylyl methicone, PEG-9 polydimethylsiloxyethyl dimethicone, glyc- erin, polyglyceryl-6 polyricinoleate, lauric acid, aluminum hydroxide, potassium sorbate, and citric acid.
  • US 2020397674 AA (LOVE SUN BODY LLC) provides a sunscreen composition in- cluding non-nano zinc oxide, a carrier, and a component selected from the group consisting of a humectant, a thickener, a dispersing agent, an emulsifier, an emollient, a preservative, an antioxidant, an odorant, and combinations thereof.
  • OBJECT OF THE INVENTION [0011] Therefore, it has been the object of the present invention to provide new sunscreen compositions with high amounts of mineral sun protection pigments, for incorporation into cos- metic compositions which provide a higher product stability in general and an increased pro- tection against color degradation and phase separation.
  • a first object of the present invention refers to a sunscreen composition
  • a sunscreen composition comprising or consisting of: (a) at least one mineral sunscreen pigment, (b) at least one alkyl benzyl alcohol, (c) optionally at least one non-mineral sun protection filter (d) and optionally at least one solvent.
  • the composition is considered to be added to a cosmetic base formulation (which does not contain UV protection filters) to introduce a high amount of mineral sun protection pigments and to establish a desired SPF of preferably 10, 20, 25, 30 or 50.
  • compositions as described above show not only antimi- crobial protection but also an improved formulation stability, especially at higher concentrations of mineral screen pigment.
  • Mineral sunscreen pigments [0016] Suitable mineral sunscreen pigments (component a) encompass oxides of titanium (TiO 2 ), zinc (ZnO), iron (Fe 2 O 3 ), zirconium (ZrO 2 ), silicon (SiO 2 ), manganese (e.g., MnO), alu- minium (Al2O3), cerium (e.g., Ce2O3) and/or mixtures thereof. 230086 [0017] Preferably, said mineral sunscreen pigment is zinc oxide or nano zinc oxide.
  • Zinc oxide is an advantageous sunscreen pigment, since it shows strong sun protection while being read- ily available and non-toxic. However, it is difficult to formulate zinc oxide and especially nano zinc oxide, especially in higher amounts with certain cosmetic formulations. However, in the present sunscreen composition with at least one alkyl benzyl alcohol, zinc oxide has an im- proved solubility and formulability over the other mineral sunscreen pigments. This is en- hanced further by the addition of at least one 1,2-alkanediol, preferably two or more 1,2-al- kanediols, each independently with 5 to 12 carbon atoms.
  • Alkyl benzyl alcohols may follow formula (I) wherein R1, R2 and R3 stand for hydrogen or an alkyl group with 1, 2, 3 or 4 carbon atoms, on condition that at least one of the substituents R1, R2 or R3 is different from hydrogen.
  • Suitable preferred compounds for component b) are selected from the group consisting of methyl benzyl alcohol, ethyl benzyl alcohol, propyl benzyl alcohol, butyl benzyl alcohol, iso- butyl benzyl alcohol, tert.-butyl benzyl alcohol, dimethyl benzyl alcohol, diethyl benzyl alcohol, dipropyl benzyl alcohol, dibutyl benzyl alcohol, di-isobutyl benzyl alcohol, di-tert.-butyl benzyl alcohol, trimethyl benzyl alcohol, triethyl benzyl alcohol, tripropyl benzyl alcohol, tributyl benzyl alcohol, tri-isobutyl benzyl alcohol, tri-tert.-butyl benzyl alcohol, methyl ethyl benzyl alcohol, methyl propyl benzyl alcohol, methyl butyl benzyl alcohol and mixtures
  • a preferred alkyl benzyl alcohol is 4-methyl benzyl alcohol.
  • the addition of 4-methyl benzyl alcohol has the advantageous effect of improving the preservation of the sunscreen composition against microbial species, and at the same time it is particularly potent in improv- ing solubility and formulability of mineral sunscreen pigment.
  • Non-mineral sun protection filters 230086 represent, for exam- ple, non-mineral substances (light filters) which are liquid or crystalline at room temperature and which are capable of absorbing ultraviolet radiation and of releasing the energy absorbed in the form of longer-wave radiation, for example heat.
  • said non-mineral sun protection filters are UV-protection filters, preferably selected from the group consisting of UVA filters, UVB filters, broadband filters and mixtures thereof.
  • the compositions according to the invention advantageously contain at least one UV- A filter and/or at least one UV-B filter and/or a broadband filter.
  • the filters cited below are preferred but non-limiting examples which can be used within the context of the present invention.
  • Non-mineral filters which are preferably used are selected from the group consisting of one, two, three, four, five or more of the following species: INCI Declaration Product/Trademark 4-Methylbenzylidene Camphor Neo Heliopan® MBC Benzophenone-3 Neo Heliopan® BB Benzophenone-4 Benzophenone-4, Benzophenone-5 Benzophenone-8 Benzylidene Camphor Sulfonic Acid Mexoryl SL Bis-(Diethylaminohydroxybenzoyl Benzoyl) Piperazine HAA299 (nano) Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine Neo Heliopan® BMT Butyl Methoxydibenzoylmethane Neo Heliopan® 357 Camphor Benzalkonium Methosulfate Mexoryl SK Cinoxate Diethylamino Hydroxy benzoyl Hexyl Benzoate Uvinul® A Plus Diethylhex
  • non-mineral filters are selected from the group consisting of tria- zines which are advantageously used in compositions additionally comprising one or more 1,2- alkanediols as described in EP 1779839 B2 (BEIERSDORF AG).
  • the non-mineral filters are selected from the group consisting of 2,4-bis- ⁇ [4-(2-ethyl-hexyloxy)-2-hydroxy]-phe- nyl ⁇ -6-(4-methoxyphenyl)-1,3,5-triazin (INCI: Aniso Triazin, tradename: Tinosorb S), dioctyl- butylamidotriazon (INCI: Dioctylbutamidotriazone), 2,4-bis-[5-1(dimethyl-propyl)benzoxazol-2- yl-(4-phenyl)-imino]-6-(2-ethylhexyl)-imino-1,3,5-triazin (tradename: Uvasorb® K2A) and 2,4,6-tribiphenyl-4-yl-1,3,5-triazin.
  • ICI Aniso Triazin, tradename: Tinosorb S
  • a preferred 1,2-alkanediol for the use in compositions with the aforementioned non-mineral filters comprises 1,2-hexanediol.
  • the sunscreen composition optionally comprises a solvent (d), wherein said solvent is preferably a 1,2-, 1,3- or a 2,3-alkanediol with 2 to 4 carbon atoms. 230086
  • Preferred solvents forming optional component (d) encompass glycerol, 1,2-propylene glycol, 1,2-butylene glycol, 1,3-propylene glycol, 1,3-butylene glycol, ethanol, water and mix- tures of two or more of said liquid carrier materials with water.
  • compositions which may be a component of a composition according to the invention are selected from the group consisting of oils such as vegetable oil, neutral oil and mineral oil.
  • the compositions comprise alkanediols with 2 to 4 carbon atoms, such as ethylene glycol, 1,2-propylene glycol or 1,3-propylene glycol.
  • the solvent component d) displays a dual function.
  • the solvent is pref- erably selected from the group consisting of 1,2-, 1,3- or 2,3-alkanediols having 2 to 4 carbon atoms.
  • the alkanediol solvent does not only improve the solubility of other components of the sunscreen composition, but additionally contributes antimicrobial properties.
  • the preservation effect of sunscreen compositions is significantly enhanced if the com- position contains a 1,2-, 1,3- or 2,3-alkanediol with 2 to 4 carbon atoms, preferably 1,3-pro- panediol.
  • preferred solvents for the use in sunscreen compositions are se- lected from the group consisting of Neo Heliopan 303 (octocrylene), Neo Heliopan HMS (ho- mosalate), Neo Heliopan AP (disodium phenyl dibenzimidazole tetrasulfonate), Neo Heliopan Hydro (phenylbenzimidazole sulfonic acid), Neo Heliopan EHT (ethylhexyl triazone), Neo He- liopan BMT (bis-ethylhexyloxyphenol methoxyphenyl triazine), Neo Heliopan E1000 (isoamyl p-methoxycinnamate), Neo Heliopan MBC (4-methylbenzylidene camphor), Mexoryl 400 (methoxypropylamino cyclohexenylidene ethoxyethylcyanoacetate (BASF)), Triasorb (phe- nylene), Neo Heliopan H
  • the solvent may be preferably selected from the aforementioned group consisting of non-mineral sun protection filters.
  • the solvent component d) displays a dual function in that it does not only improve the solubility of the components of the sunscreen composition but also enhances its SPF.
  • the SPF of a sunscreen composition comprising a mineral sunscreen pig- ment can be enhanced using a non-mineral sun protection filter as a solvent d) while the solu- bility of the sunscreen composition is improved at the same time.
  • the above-described sol- vents also support the product stability, this is particularly the case for 1,3-propanediol.
  • a very effective composition can be achieved when alkyl benzyl alcohols are combined with the solvents mentioned above in particular 1,3-propanediol. Even more preferred is the combination of alkyl benzyl alcohols with the solvents mentioned above, in particular 1,3-pro- panediol, and also alkanediols as described in the following, most preferably 1,2-hexanediol and/or 1,2-octanediol, but also preferably 1,2-heptanediol alone or in a further combination with either or both of 1,2-hexanediol and 1,2-octanediol.
  • the sunscreen composition comprises at least one alkanediol as additional component (e), preferably at least one 1,2-alkanediol, more preferably two or more 1,2-alkanediols, each independently with 5 to 12 carbon atoms, wherein said 1,2-alkanediol(s) is/are selected from the group consisting of 1,2-pentanediol, 1,2-hexanediol, 1,2-heptanediol, 1,2-octanediol, 1,2-nonanediol, 1,2-decanediol, 1,2-undecanediol and 1,2-dodecanediol.
  • the alkanediol is a combination of 1,2-hexanediol and 2,3-hexanediol, or 1,2-hep- tanediol and 2,3-heptanediol, or 1,2-octanediol and 2,3-octanediol. More preferably, the al- kanediol comprises 1,2-octanediol or 1,2-decanediol, also preferably 1,2-hexanediol, 1,2-oc- tanediol and/or 1,2-decanediol.
  • pentanediol, hexanediol, heptanediol, octanediol, and any mixture thereof or is selected from the group consisting of alkanediols having a number of carbon atoms of 6 to 8, i.e. hexanediol, heptane- diol, octanediol, and any mixture thereof, or is selected from the group consisting of alkanediols having a number of carbon atoms of 7 and 8, i.e. heptanediol, octanediol, and any mixture thereof.
  • the alkanediol is selected from the group consisting of alkanediols having a higher number of carbon atoms of 9 to 12, i.e. nonanediol, decanediol, undecanediol, dodecanediol, and any mixture thereof, or is selected from the group consisting of alkanediols having a number of carbon atoms of 9 to 11, i.e.
  • nonanediol decanediol, un- decanediol, and any mixture thereof, or is selected from the group consisting of alkanediols having a number of carbon atoms of 9 and 10, i.e. nonanediol, decanediol, and any mixture thereof.
  • the alkanediol is either pentanediol, hexanediol, hep- tanediol or octanediol, or any mixture thereof.
  • the alkanediol is either nonanediol, decanediol, undecanediol or dodecanediol, or any mixture thereof. In a most preferred variant, the alkanediol is decanediol.
  • the term “alkanediol” within the context of the present invention also includes its con- stitutional isomers or position isomers. Constitutional isomers are compounds that have the same molecular formula and different connectivity.
  • Position isomers a particular form of con- stitutional isomerism, are structural isomers that can be viewed as differing only on the position of a functional group on a parent structure, which in this case, in particular, is the position of the two alcohol functions.
  • Position isomers a particular form of con- stitutional isomerism, are structural isomers that can be viewed as differing only on the position of a functional group on a parent structure, which in this case, in particular, is the position of the two alcohol functions.
  • position isomers of the alkanediol (x,x+1) constitutional isomers; (x,x+2) constitutional isomers; (x,x+3) constitutional isomers; etc.
  • x stands for the number of the carbon atom in the alkanediol chain, to which the OH groups of the alkanediol are chemically bonded. For example: if x is 1, the two OH groups of the alkanediol are chemically bonded to the C1 and C2 carbon atoms in the alkanediol chain; if x is 2, the two OH groups of the alkanediol are chemically bonded to the C2 and C3 carbon atoms in the alkanediol chain, etc.
  • the two OH functional groups are vicinal attached to two different adjacent carbon atoms in the chain.
  • the two OH functional groups are attached to two different carbon atoms in the chain where the two carbon atoms are separated by one C atom.
  • the two OH functional groups are attached to two different carbon atoms in the chain where the two carbon atoms are separated by two C atoms.
  • the two functional groups are attached to the first C atom and to the terminal C atom.
  • the alkanediol having a carbon chain of 5 to 12 carbon atoms is preferably a vicinal (x,x+1) diol, selected from the group consisting of a 1,2-diol, 2,3-diol, 3,4-diol, 4,5-diol, further (x,x+1) diols, and mixtures thereof, preferably an alpha,beta-1,2-constitutional isomer.
  • the alkanediol is an (x,x+1) constitutional isomer, wherein x stands for the number of the carbon atom in the alkanediol chain, to which the OH groups of the alkanediol are chemically bonded, in particular 230086 a 1,2-alkanediol, a 2,3-alkanediol, a 3,4-alkanediol, or mixtures thereof, preferably a 1,2-al- kanediol or a 2,3-alkanediol.
  • the alkanediol having a carbon chain of 5 to 12 carbon atoms is preferably a non- vicinal (x,x+2) diol, selected from the group consisting of a 1,3-diol, 2,4-diol, 3,5-diol, further (x,x+2) diols, and mixtures thereof, preferably an alpha,gamma-1,3-constitutional isomer.
  • the alkanediol having a carbon chain of 5 to 12 carbon atoms is a non-vicinal (x,x+2) diol, selected from the group consisting of a 1,3-diol, 2,4-diol, 3,5-diol, 4,6-diol, further (x,x+2) diols, and mixtures thereof, preferably an alpha,gamma-1,3-consitutional isomer.
  • the alkanediol having a car- bon chain of 5 to 12 carbon atoms is preferably a non-vicinal (x,x+3) diol, selected from the group consisting of a 1,4-diol, 2,5-diol, further (x,x+3) diols, and mixtures thereof, preferably an alpha,delta-1,4-constitutional isomer.
  • the alkanediol is preferably an alpha,omega alkanediol, more preferably, 1,7-heptanediol or 1,8-octanediol.
  • the alkanediol is a 1,2- alkanediol, a 2,3-alkanediol, a 3,4-alkanediol, or mixtures thereof, more preferred 2,3-al- kanediol.
  • the alkanediol is selected from the group consisting of: 1,2-pentanediol, 2,3-pentanediol, 3,4-pentanediol, 1,2-hexanediol, 2,3-hexanediol, 3,4-hexanediol, 1,2-heptanediol, 2,3-heptanediol, 3,4-heptanediol, 1,2-octanediol, 2,3-octanediol, 3,4-octanediol, 1,2-nonanediol, 2,3-nonanediol, 3,4-nonanediol, 1,2-decanediol, 2,3-decanediol, 3,4-decanediol, 1,2-undecanediol, 2,3-pentanediol, 3,4-p
  • the alkanediol is se- lected from the group consisting of 1,2-pentanediol, 2,3-pentanediol, 1,2-hexanediol, 2,3-hex- anediol, 1,2 heptanediol, 2,3 heptanediol, 1,2 octanediol, 2,3 octanediol, 1,2-nonanediol, 2,3- nonanediol, 1,2-decanediol, 2,3-decanediol, 1,2-undecanediol, 2,3-undecanediol, 1,2-dodec- anediol, 2,3-dodecanediol, and any mixture thereof.
  • Said alkanediols are liquid at a purity above 90 %.
  • 1,2-pentanediol, 2,3-pentanediol, 1,2-hexanediol, 2,3-hexanediol, 1,2-heptanediol, 2,3-heptanediol, 2,3-octanediol, 2,3-nonanediol, or mixtures of said liquid alkanediols are particularly preferred.
  • the alkanediol is selected from the group consisting of: 1,2-pentanediol, 2,3-pentanediol, 1,2-hexanediol, 2,3-hexanediol, 1,2-heptanediol, 2,3-heptanediol, 1,2-octanediol, 2,3-octanediol, 1,2-nonanediol, 2,3-nonanediol, 1,2-decanediol, 2,3-decanediol, 1,2-undecanediol, 2,3-undecanediol, 1,2-dodecanediol, 2,3-dodecanediol, and any mixture thereof.
  • the alkanediol mixture is selected from the group consisting of 1,2 and 2,3 mixtures: 1,2-pentanediol and 2,3-pentanediol, 1,2-hexanediol and 2,3-hexanediol, 1,2-heptanediol and 2,3-heptanediol, 1,2-octanediol and 2,3-octanediol, 1,2-nonanediol and 2,3-nonanediol, 1,2-decanediol and 2,3-decanediol, 1,2-undecanediol and 2,3-undecanediol, 1,2-dodecanediol and 2,3-dodecanediol, and any mixture thereof.
  • the alkanediol mixture is a combination of 1,2-heptanediol and 2,3-heptanediol, or 1,2-decanediol and 2,3-decanediol.
  • the alkanediol is selected from the group consisting of 1,2-pentanediol, 2,3-pentanediol, and mixtures thereof, or is selected from the group consisting of 1,2-hexanediol, 2,3-hexanediol, and mixtures thereof.
  • the 230086 linear alkanediol or the first linear alkanediol can also preferably be selected from the group consisting of 1,2-octanediol, 2,3-octanediol, and mixtures thereof.
  • the 230086 linear alkanediol or the first linear alkanediol can also preferably be selected from the group consisting of 1,2-octanediol, 2,3-octanediol, and mixtures thereof.
  • adding mixtures of at least one 1,2-alkanediol, pref- erably two 1,2-alkanediols, and at least one alkyl benzyl alcohol even in small amounts in- creases preservation of cosmetic compositions, preferably those comprising up to 30 wt.-% of mineral sunscreen pigments, preferably such as for example zinc oxide and protects the com- position also against yellowing and phase separation.
  • compositions show typically a SPF of 25 to 30.
  • the compositions thus obtained meet the A criteria according to European Phar- macopoeia standard.
  • Mixtures of 4-methyl benzyl alcohol, 1,2-hexanediol and 1,2-octanediol are particularly preferred and obtainable under the trademark SymTriol® (SYMRISE).
  • SYMRISE SymTriol®
  • the use of the commercially available liquid mixture of 4-methyl benzyl alcohol, 1,2- hexanediol and 1,2-octanediol also simplifies the formulation of the sunscreen composition since the solid component 4-methyl benzyl alcohol does not need to be dissolved involving an extra step.
  • the sunscreen composition optionally comprises an emulsifier, pref- erably a non-ionic emulsifier.
  • Non-ionic or cationic surfactants may be added to the preparations as emulsifiers, in- cluding for example: ⁇ products of the addition of 2 to 30 mol ethylene oxide and/or 0 to 5 mol propylene oxide onto linear C8-22 fatty alcohols, onto C12-22 fatty acids and onto alkyl phenols containing 8 to 15 car- bon atoms in the alkyl group; ⁇ C12/18 fatty acid monoesters and diesters of addition products of 1 to 30 mol ethylene oxide onto glycerol; ⁇ glycerol mono- and diesters and sorbitan mono- and diesters of saturated and unsaturated fatty acids containing 6 to 22 carbon atoms and ethylene oxide addition products thereof; ⁇ addition products of 15 to 60 mol
  • Mix- tures of compounds from several of these classes are also suitable; ⁇ addition products of 2 to 15 mol ethylene oxide onto castor oil and/or hydrogenated castor oil; ⁇ partial esters based on linear, branched, unsaturated or saturated C6/22 fatty acids, ricinoleic acid and 12-hydroxystearic acid and glycerol, polyglycerol, pentaerythritol, dipentaerythritol, sugar alcohols (for example sorbitol), alkyl glucosides (for example methyl glucoside, butyl glucoside, lauryl glucoside) and polyglucosides (for example cellulose); 230086 ⁇ mono-, di and trialkyl phosphates and mono-, di- and/or tri-PEG-alkyl phosphates and salts thereof; ⁇ wool wax alcohols; ⁇ polysiloxane/polyalkyl polyether copolymers and corresponding derivatives; ⁇ mixed esters
  • the emulsifiers have the effect that they inhibit phase separation of the final sunscreen compositions. This effect is particularly pronounced for non-ionic emulsifiers which thus signif- icantly improve the stability of sunscreen compositions comprising mineral sunscreen pig- ments in high amounts.
  • the addition products of ethylene oxide and/or propylene oxide onto fatty alcohols, fatty acids, alkylphenols, glycerol mono- and diesters and sorbitan mono- and diesters of fatty acids or onto castor oil are known commercially available products. They are homologue mixtures of which the average degree of alkoxylation corresponds to the ratio between the quantities of ethylene oxide and/or propylene oxide and substrate with which the addition reaction is carried out.
  • Suitable partial glycerides are stearic acid monoglyceride, stearic acid diglyceride, hydroxystearic acid monoglyceride, hydroxystearic acid diglyceride, isostearic acid monoglyceride, isostearic acid diglyceride, oleic acid mono- glyceride, oleic acid diglyceride, ricinoleic acid monoglyceride, ricinoleic acid diglyceride, lino- leic acid monoglyceride, linoleic acid diglyceride, linolenic acid monoglyceride, linolenic acid diglyceride, erucic acid monoglyceride, erucic acid diglyceride, tartaric acid monoglyceride, tartaric acid diglyceride, citric acid monoglyceride, citric acid diglyceride, malic acid mono- glyceride, malic acid diglyceride, mixed
  • Sorbitan esters are sorbitan monoisostearate, sorbitan ses- quiisostearate, sorbitan diisostearate, sorbitan triisostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan dioleate, sorbitan trioleate, sorbitan monoerucate, sorbitan sesquieru- cate, sorbitan dierucate, sorbitan trierucate, sorbitan monoricinoleate, sorbitan sesquiricinole- ate, sorbitan diricinoleate, sorbitan triricinoleate, sorbitan monohydroxystearate, sorbitan ses- quihydroxystearate, sorbitan dihydroxystearate, sorbitan trihydroxystearate, sorbitan
  • Polyglycerol esters are Polyglyceryl- 2 Dipolyhydroxystearate (Dehymuls ® PGPH), Polyglycerin-3-Diisostearate (Lameform ® TGI), Polyglyceryl-4 Isostearate (Isolan ® GI 34), Polyglyceryl-3 Oleate, Diisostearoyl Polyglyceryl-3 Diisostearate (Isolan® PDI), Polyglyceryl-3 Methylglucose Distearate (Tego Care ® 450), Poly- glyceryl-3 Beeswax (Cera Bellina ® ), Polyglyceryl-4 Caprate (Polyglycerol Caprate T2010/90), Polyglyceryl-3 Cetyl Ether (Chimexane
  • alkyl and/or alkenyl oligoglycosides Alkyl and/or alkenyl oligoglycosides, their prep- aration and their use are known from the prior art. They are prepared in particular by reacting glucose or oligosaccharides with primary alcohols containing 8 to 18 carbon atoms.
  • monoglycosides in which a cyclic sugar residue is glycosidically bonded to the fatty alcohol, as well as oligomeric glycosides with a degree of oligomerization up to preferably about 8 are suitable.
  • the degree of oligomerization is a statistical mean value based on a homolog distribution customary for such technical products.
  • Tetraalkyl ammonium salts comprise the hydrophobic high molecular group required for the surface activity in the cation by dissociation in aqueous solution.
  • a group of important representatives of the cationic surfactants are the tetraalkyl ammonium salts of the general formula: (R 1 R 2 R 3 R 4 N + ) X-.
  • R1 stands for C1-C8 alk(en)yl
  • R 2 , R 3 and R 4 independently of each other, for alk(en)yl radicals having 1 to 22 carbon atoms.
  • X is a counter ion, preferably selected from the group of the halides, alkyl sulfates and alkyl carbonates.
  • Cationic surfactants, in which the nitrogen group is substituted with two long acyl groups and two short alk(en)yl groups, are particularly preferred.
  • esterquats are generally understood to be quaternised fatty acid triethanolamine ester salts. These are known compounds which can be obtained by the relevant methods of preparative organic chemistry. Reference is made in this connection to International patent application WO 91/01295 A1, according to which triethanolamine is partly esterified with fatty acids in the presence of hypophosphorous acid, air is passed through the reaction mixture and the whole is then quaternised with dimethyl sulphate or ethylene oxide.
  • German patent DE 4308794 C1 describes a process for the production of solid esterquats in which the quaternisation of triethanolamine esters is carried out in the presence of suitable dispersants, preferably fatty alcohols.
  • suitable dispersants preferably fatty alcohols.
  • Typical examples of esterquats suitable for use in accordance with the invention are products of which the acyl component derives from monocarboxylic acids corresponding to formula RCOOH in which RCO is an acyl group containing 6 to 10 carbon atoms, and the amine component is triethanolamine (TEA).
  • monocarboxylic acids are caproic acid, caprylic acid, capric acid and technical mixtures thereof such as, for example, so- called head-fractionated fatty acid.
  • Esterquats of which the acyl component derives from monocarboxylic acids containing 8 to 10 carbon atoms are preferably used.
  • Other esterquats are those of which the acyl component derives from dicarboxylic acids like malonic acid, succinic acid, maleic acid, fumaric acid, glutaric acid, sorbic acid, pimelic acid, azelaic acid, sebacic acid and/or dodecanedioic acid, but preferably adipic acid.
  • esterquats of which the acyl component derives from mixtures of monocarboxylic acids containing 6 to 22 carbon atoms, and adipic acid are preferably used.
  • the molar ratio of mono and dicarboxylic acids in the final esterquat may be in the range from 1:99 to 99:1 and is preferably in the range from 50:50 to 90:10 and more particularly in the range from 70:30 to 80:20.
  • other suitable esterquats are quaternized ester salts of mono-/dicarboxylic acid mixtures with diethanolalkyamines or 1,2-dihydroxypropyl dialkylamines.
  • the esterquats may be obtained both from fatty acids and from the corresponding triglycerides in admixture with the corresponding dicarboxylic acids.
  • the sunscreen composition optionally comprises an emollient, pref- erably propanediol dicaprylate or cetearyl nonanoate.
  • Emollients may be used as alternatives to silicones and serve for nourishing the skin and generating a silky skin feel.
  • compositions according to the present invention may comprise or consist of: (a) zinc oxide or nano zinc oxide, (b) 4-methyl benzyl alcohol, (c) optionally at least one non-mineral sun protection filter, (d) optionally 1,2-propanediol or 1,3-propanediol, (e) and optionally 1,2-hexanediol and/or 1,2-octaneidol.
  • a particular preferred sunscreen composition may comprise or consist of: 230086 (a) about 10 to about 50 wt.-% , preferably about 15 to about 40 wt.-%, more preferably about 20 to about 35 wt.-%, most preferably about 25 to about 30 wt.-% of a mineral sunscreen pigment, preferably zinc oxide or nano zinc oxide, (b) about 0.1 to about 5 wt.-%, preferably about 0.3 to about 3 wt.-%, more preferably about 0.4 to about 2 wt.-%, most preferably about 0.5 to about 1 wt.-% of an alkyl benzyl alcohol, preferably 4-methyl benzyl alcohol, (c) optionally at least one non-mineral sun protection filter, (d) optionally at least one solvent, and (e) optionally about 0.1 to about 5 wt.-%, preferably about 0.3 to about 3 wt.-%, more pref- erably about 0.4 to about 2 wt.-%
  • the preferred sunscreen compositions have the effect of providing high amounts of mineral sunscreen pigments, preferably zinc oxide, while having an improved formulability at the same time.
  • the preferred sunscreen compositions have antimicrobial properties and are stable against discoloration and phase separation.
  • COSMETIC COMPOSITIONS [0092]
  • the aforementioned sunscreen compositions may be added to cos- metic bases to form cosmetic compositions.
  • the amounts of compounds specified in the fol- lowing embodiments refer to the final cosmetic composition.
  • Another aspect of the present invention concerns a cosmetic composition
  • a cosmetic composition comprising: (i) a cosmetic base (ii) a sunscreen composition as described above, wherein the at least one mineral sunscreen pigment is present in an amount of from 1 to 35 wt.-%, preferably in an amount of from 5 to 30 wt.-%, more preferably in an amount of from 10 to 25 wt.-%, most preferably in an amount of from 15 to 22 wt.-%, wherein the at least one alkyl benzyl alcohol is present in an amount of from 0.1 to 5 wt.-%, preferably in an amount of from 0.2 to 4 wt.-%, more preferably in an amount of from 0.3 to 3 wt.-%, most preferably in an amount of from 0.5 to 1 wt.-%, and wherein the at least one alkanediol (e) is present in an amount of from 0.1 to 5 wt.-%, prefer- ably in an amount of from 0.2 to 4
  • Another object of the present invention refers to a method for obtaining a cosmetic composition
  • a method for obtaining a cosmetic composition comprising or consisting of the following steps: (i) providing a cosmetic base; 230086 (ii) providing a sunscreen composition as described above; (iii) adding component (ii) to component (i), or alternatively adding individual parts of com- ponent (ii) individually, so that about 1 to about 30 wt.-percent of the sunscreen composition (ii) are present in the final cosmetic composition.
  • the cosmetic composition may be for example a skin care, a personal care, a hair care or a sun care composition.
  • the composition may represent for example a cosmetic cream, lotion, spray, emulsion, ointment, gel or mousse and the like.
  • the preparations according to the invention may contain antidandruff agents, irritation- preventing agents, irritation-inhibiting agents, antioxidants, adstringents, perspiration-inhibiting agents, antiseptic agents, antistatics, binders, buffers, carrier materials, chelating agents, cell stimulants, cleansing agents, care agents, deodorizing agents, antiperspirants, softeners, emulsifiers, enzymes, essential oils, fibres, film-forming agents, fixatives, foam-forming agents, foam stabilizers, substances for preventing foaming, foam boosters, gelling agents, gel-form- ing agents, hair care agents, hair-setting agents, hair-straightening agents, moisture-donating agents, moisturizing substances, moisture-retaining substances, bleaching agents, strength- ening agents, stain-removing agents, optically brightening agents, impregnating agents, dirt- repellent agents, friction-reducing agents, lubricants, moisturizing creams, ointments, opacify- ing
  • Preferred auxiliaries and additives are anionic and/or amphoteric or zwitterionic surfac- tants. Non-ionic and cationic surfactants can be also present in the composition. Suitable examples are mentioned along with the above paragraph dealing with emulsifiers.
  • Anionic and zwitterionic surfactants [0100] Preferred examples for anionic and zwitterionic surfactants are one or more com- pounds selected from the group consisting of sodium laureth sulfate, cocamidopropyl betaine, sodium cocoamphoacetate, cocoglucoside and ammonium lauryl sulfosuccinate.
  • the percentage content of surfactants in the preparations may be from 0.1 to 10 wt.-% and is preferably from 0.5 to 5 wt.-%, based on the preparation.
  • Non-ionic surfactants [0103]
  • the added non-ionic surfactants are preferably alkoxylated and/or propoxylated, particularly primary alcohols having preferably 8 to 18 carbon atoms and 230086 an average of 1 to 12 mol ethylene oxide (EO) and/or 1 to 10 mol propylene oxide (PO) per mol alcohol.
  • C 8 -C 16 -Alcohol alkoxylates advantageously ethoxylated and/or propoxylated C 10 - C 15 -alcohol alkoxylates, particularly C 12 -C 14 alcohol alkoxylates, with an ethoxylation degree between 2 and 10, preferably between 3 and 8, and/or a propoxylation degree between 1 and 6, preferably between 1.5 and 5, are particularly preferred.
  • the cited degrees of ethoxylation and propoxylation constitute statistical average values that can be a whole or a fractional number for a specific product.
  • Preferred alcohol ethoxylates and propoxylates have a narrowed homolog distribution (narrow range ethoxylates/propoxylates, NRE/NRP).
  • fatty alcohols with more than 12 EO can also be used. Examples of these are (tallow) fatty alcohols with 14 EO, 16 EO, 20 EO, 25 EO, 30 EO or 40 EO.
  • alkyl glycosides that satisfy the general Formula RO(G)x can be added, e.g., as compounds, particularly with anionic surfactants, in which R means a primary linear or methyl-branched, particularly 2-methyl-branched, aliphatic group containing 8 to 22, preferably 12 to 18 carbon atoms and G stands for a glycose unit containing 5 or 6 carbon atoms, preferably for glucose.
  • R means a primary linear or methyl-branched, particularly 2-methyl-branched, aliphatic group containing 8 to 22, preferably 12 to 18 carbon atoms
  • G stands for a glycose unit containing 5 or 6 carbon atoms, preferably for glucose.
  • the degree of oligomerization x which defines the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10, preferably between 1.1 and 1.4. [0105] Fatty acid ester alkoxylates.
  • non-ionic surfactants which are used either as the sole non-ionic surfactant or in combination with other non-ionic surfactants, in particular, together with alkoxylated fatty alcohols and/or alkyl glycosides, are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters preferably containing 1 to 4 carbon atoms in the alkyl chain, more particularly the fatty acid methyl esters which are described, for example, in Japanese Patent Application JP-A- 58/217598 or which are preferably produced by the process described in International Patent Application WO-A-90/13533.
  • Amine oxides Non-ionic surfactants of the amine oxide type, for example, N-coco alkyl-N,N-dimethylamine oxide and N-tallow alkyl-N,N-dihydroxyethylamine oxide, and the fatty acid alkanolamides may also be suitable.
  • the quantity in which these non-ionic surfactants are used is preferably no more than the quantity in which the ethoxylated fatty alcohols are used and, particularly no more than half that quantity.
  • Gemini surfactants are particularly no more than the quantity in which the ethoxylated fatty alcohols are used and, particularly no more than half that quantity.
  • gemini surfactants can be considered as further surfactants.
  • such compounds are understood to mean compounds that have two hydrophilic groups and two hydrophobic groups per molecule. As a rule, these groups are separated from one another by a "spacer".
  • the spacer is usually a hydrocarbon chain that is intended to be long enough such that the hydrophilic groups are a sufficient distance apart to be able to act independently of one another.
  • These types of surfactants are generally characterized by an unusually low critical micelle concentration and the ability to strongly reduce the surface tension of water. In exceptional cases, however, not only dimeric but also trimeric surfactants are meant by the term gemini surfactants.
  • Suitable gemini surfactants are, for example, sulfated hydroxy mixed ethers according to German Patent Application DE 4321022 A1 or dimer alcohol bis- and trimer alcohol tris sulfates and ether sulfates according 230086 to International Patent Application WO 96/23768 A1.
  • Blocked end group dimeric and trimeric mixed ethers according to German Patent Application DE 19513391 A1 are especially characterized by their bifunctionality and multifunctionality.
  • Gemini polyhydroxyfatty acid amides or polyhydroxyfatty acid amides, such as those described in International Patent Applications WO 95/19953 A1, WO 95/19954 A1 and WO 95/19955 A1 can also be used.
  • Cationic surfactants Tetraalkyl ammonium salts.
  • Cationically active surfactants comprise the hydrophobic high molecular group required for the surface activity in the cation by dissociation in aqueous solution.
  • a group of important representatives of the cationic surfactants are the tetraalkyl ammonium salts of the general formula: (R 1 R 2 R 3 R 4 N + ) X-.
  • R1 stands for C 1 -C 8 alk(en)yl, R 2 , R 3 and R 4 , independently of each other, for alk(en)yl radicals having 1 to 22 carbon atoms.
  • X is a counter ion, preferably selected from the group of the halides, alkyl sulfates and alkyl carbonates.
  • Cationic surfactants in which the nitrogen group is substituted with two long acyl groups and two short alk(en)yl groups, are particularly preferred.
  • Esterquats A further class of cationic surfactants particularly useful as co-surfactants for the present invention is represented by the so-called esterquats. Esterquats are generally understood to be quaternised fatty acid triethanolamine ester salts. These are known compounds which can be obtained by the relevant methods of preparative organic chemistry.
  • esterquats suitable for use in accordance with the invention are products of which the acyl component derives from monocarboxylic acids corresponding to formula RCOOH in which RCO is an acyl group containing 6 to 10 carbon atoms, and the amine component is triethanolamine (TEA).
  • monocarboxylic acids are caproic acid, caprylic acid, capric acid and technical mixtures thereof such as, for example, so- called head-fractionated fatty acid.
  • Esterquats of which the acyl component derives from monocarboxylic acids containing 8 to 10 carbon atoms are preferably used.
  • esterquats are those of which the acyl component derives from dicarboxylic acids like malonic acid, succinic acid, maleic acid, fumaric acid, glutaric acid, sorbic acid, pimelic acid, azelaic acid, sebacic acid and/or dodecanedioic acid, but preferably adipic acid.
  • esterquats of which the acyl component derives from mixtures of monocarboxylic acids containing 6 to 22 carbon atoms, and adipic acid are preferably used.
  • the molar ratio of mono and dicarboxylic acids in the final esterquat may be in the range from 1:99 to 99:1 and is preferably in the range from 50:50 to 90:10 and more particularly in the range from 70:30 to 80:20.
  • other suitable esterquats are quaternized ester salts of mono-/dicarboxylic acid mixtures with diethanolalkyamines or 1,2-dihydroxypropyl dialkylamines.
  • the esterquats may be obtained both from fatty acids and from the 230086 corresponding triglycerides in admixture with the corresponding dicarboxylic acids.
  • Amphoteric or ampholytic surfactants possess a plurality of functional groups that can ionize in aqueous solution and thereby-depending on the conditions of the medium- lend anionic or cationic character to the compounds (see DIN 53900, July 1972). Close to the isoelectric point (around pH 4), the amphoteric surfactants form inner salts, thus becoming poorly soluble or insoluble in water. Amphoteric surfactants are subdivided into ampholytes and betaines, the latter existing as zwitterions in solution. Ampholytes are amphoteric electrolytes, i.e. compounds that possess both acidic as well as basic hydrophilic groups and therefore behave as acids or as bases depending on the conditions.
  • betaines are known surfactants which are mainly produced by carboxyalkylation, preferably carboxymethylation, of amine compounds.
  • the starting materials are preferably condensed with halocarboxylic acids or salts thereof, more particularly sodium chloroacetate, one mole of salt being formed per mole of betaine.
  • halocarboxylic acids or salts thereof more particularly sodium chloroacetate
  • unsaturated carboxylic acids such as acrylic acid for example, is also possible.
  • betaines are the carboxy alkylation products of secondary and, in particular, tertiary amines which correspond to formula R 1 R 2 R 3 N-(CH 2 ) q COOX where R 1 is a an alkyl radical having 6 to 22 carbon atoms, R 2 is hydrogen or an alkyl group containing 1 to 4 carbon atoms, R 3 is an alkyl group containing 1 to 4 carbon atoms, q is a number of 1 to 6 and X is an alkali and/or alkaline earth metal or ammonium.
  • Typical examples are the carboxymethylation products of hexylmethylamine, hexyldimethylamine, octyldimethylamine, decyldimethylamine, C12/14-cocoalkyldimethylamine, myristyldimethylamine, cetyldimethylamine, stearyldimethylamine, stearylethylmethylamine, oleyldimethylamine, C 16/18 -tallowalkyldimethylamine and their technical mixtures, and particularly dodecyl methylamine, dodecyl dimethylamine, dodecyl ethylmethylamine and technical mixtures thereof. [0114] Alkylamido betaines.
  • R 1 CO is an aliphatic acyl radical having 6 to 22 carbon atoms and 0 or 1 to 3 double bonds
  • R 2 is hydrogen or an alkyl radical having 1 to 4 carbon atoms
  • R 3 is an alkyl radical having 1 to 4 carbon atoms
  • p is a number from 1 to 6
  • q is a number from 1 to 3
  • X is an alkali and/or alkaline earth metal or ammonium.
  • Typical examples are reaction products of fatty acids having 6 to 22 carbon atoms, like for example caproic acid, caprylic acid, caprinic acid, lauric acid, myristic acid, palmitic acid, palmoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linolic acid linoleic acid, elaeostearic acid, arachidonic acid, gadoleic acid, behenic acid, erucic acid and their technical mixtures with N,N-dimethylaminoethylamine, 230086 N,N-dimethylaminopropylamine, N,N-diethylaminoethylamine und N,N-diethylami- nopropylamine, which are condensed with sodium chloroacetate.
  • Imidazolines Other suitable starting materials for the betaines to be used for the purposes of the invention are imidazolines. These substances are also known and may be obtained, for example, by cyclizing condensation of 1 or 2 moles of C6-C22 fatty acids with polyfunctional amines, such as for example aminoethyl ethanolamine (AEEA) or diethylenetriamine. The corresponding carboxyalkylation products are mixtures of different open-chain betaines.
  • Suitable oil bodies which form constituents of the O/W emulsions, are, for example, Guerbet alcohols based on fatty alcohols having 6 to 18, preferably 8 to 10, carbon atoms, esters of linear C6-C22-fatty acids with linear or branched C6-C22-fatty alcohols or esters of branched C6-C 13-carboxylic acids with linear or branched C6-C 22-fatty alcohols, such as, for example, myristyl myristate, myristyl palmitate, myristyl stearate, myristyl isostearate, myristyl oleate, myristyl
  • esters of linear C6-C22-fatty acids with branched alcohols in particular 2-ethylhexanol, esters of C 18 -C 38 - alkylhydroxy carboxylic acids with lin- ear or branched C 6 -C 22 -fatty alcohols, in particular Dioctyl Malate, esters of linear and/or branched fatty acids with polyhydric alcohols (such as, for example, propylene glycol, dimerdiol or trimertriol) and/or Guerbet alcohols, triglycerides based on C6 -C10-fatty acids, liquid mono- /di-/triglyceride mixtures based on C6-C18-fatty acids, esters of C6- C22-fatty alcohols and/or Guerbet alcohols with aromatic carboxylic acids, in particular benzoic acid, esters of C2- C12- dicarboxylic acids with linear or branched alcohols having 1 to 22 carbon atoms or
  • Finsolv® TN linear or branched, symmetrical or asymmetrical dialkyl ethers having 6 to 22 carbon atoms per alkyl group, such as, for example, dicaprylyl ether (Cetiol® OE), ring-opening products of epoxidized fatty acid esters with polyols, silicone 230086 oils (cyclomethicones, silicone methicone grades, etc.) and/or aliphatic or naphthenic hydro- carbons, such as, for example, squalane, squalene or dialkylcyclohexanes.
  • dicaprylyl ether Cetiol® OE
  • silicone 230086 oils cyclomethicones, silicone methicone grades, etc.
  • aliphatic or naphthenic hydro- carbons such as, for example, squalane, squalene or dialkylcyclohexanes.
  • Superfatting agents and consistency factors may be selected from such substances as, for example, lanolin and lecithin and also polyethoxylated or acylated lanolin and lecithin derivatives, polyol fatty acid esters, monoglycerides and fatty acid alkanolamides, the fatty acid alkanolamides also serving as foam stabilizers.
  • the consistency factors mainly used are fatty alcohols or hydroxyfatty alcohols con- taining 12 to 22 and preferably 16 to 18 carbon atoms and also partial glycerides, fatty acids or hydroxyfatty acids.
  • Suitable thickeners are polymeric thickeners, such as Aerosil® types (hydrophilic sili- cas), polysaccharides, more especially xanthan gum, guar-guar, agar-agar, alginates and ty- loses, carboxymethyl cellulose and hydroxyethyl cellulose, also relatively high molecular weight polyethylene glycol monoesters and diesters of fatty acids, polyacrylates (for example Carbopols® [Goodrich] or Synthalens® [Sigma]), polyacrylamides, polyvinyl alcohol and poly- vinyl pyrrolidone, surfactants such as, for example, ethoxylated fatty acid glycerides, esters of
  • film formers encompass the following species: Product INCI Declaration Oleocraft LP 20 PA (MV) Polyamide-8 Oleocraft MP 30 PA (MV) Polyamide-3 Trimethylpentanediol / Adipic Acid / Glycerin WetFilm Crosspolymer CosmoSurf CE 100 Octyldodecyl Citrate Crosspolymer TegoCare 450 Polyglyceryl-3 Methyl Glucose Distearate Performa V6112 C28-52 Olefin/Undecylenic Acid Copolymer Floraester Jojoba K100 Hydrolyzed Jojoba esters, Jojoba Esters, Aqua KP545 Cyclopentasiloxane Acrylates/Dimethicone copolymer Volarest Acrylates/Beheneth-25 Methacylate Copolymer Dermacryl E Polymer Styrene/Acrylates Copolymer Baycusan C1001 Polyure
  • Suitable anionic, zwitterionic, amphoteric and nonionic polymers are, for example, vinyl acetate/crotonic acid copolymers, vinyl pyrrolidone/vinyl acrylate copolymers, vinyl acetate/bu- tyl maleate/isobornyl acrylate copolymers, methyl vinylether/maleic anhydride copolymers and esters thereof, uncrosslinked and polyol-crosslinked polyacrylic acids, acrylamidopropyl trime- thylammonium chloride/acrylate copolymers, octylacrylamide/methyl methacrylate/tert.-butyl- aminoethyl methacrylate/2-hydroxypropyl methacrylate copolymers, polyvinyl pyrrolidone, vi- nyl pyrrolidone/vinyl acetate copolymers, vinyl pyrrolidone/dimethylaminoethyl metha
  • pearlizing waxes are, for example, alkylene glycol esters, especially ethylene glycol distearate; fatty acid alkanolamides, especially cocofatty acid diethanolamide; partial glycerides, especially stearic acid monoglyceride; esters of polybasic, optionally hydroxysub- stituted carboxylic acids with fatty alcohols containing 6 to 22 carbon atoms, especially long- chain esters of tartaric acid; fatty compounds, such as for example fatty alcohols, fatty ketones, fatty aldehydes, fatty ethers and fatty carbonates which contain in all at least 24 carbon atoms, especially laurone and distearylether; fatty acids, such as stearic acid, hydroxystearic acid or behenic acid, ring opening products of olefin epoxides containing 12 to 22 carbon atoms with fatty alcohols containing 12 to 22 carbon atoms and/or poly
  • Silicones Preferred silicones to be contained in the mixture according to the inventions are Di- methicone, Cyclomethicone, Phenyl Trimethicone, Cyclohexasiloxane and Cyclopentasilox- ane. A detailed overview of suitable volatile silicones can be found in Todd et al. in Cosm. Toil.91, 27 (1976).
  • waxes may also be present in the preparations, more espe- cially natural waxes such as, for example, candelilla wax, carnauba wax, Japan wax, espar- tograss wax, cork wax, guaruma wax, rice oil wax, sugar cane wax, ouricury wax, montan wax, beeswax, shellac wax, spermaceti, lanolin (wool wax), uropygial fat, ceresine, ozocerite (earth wax), petrolatum, paraffin waxes and microwaxes; chemically modified waxes (hard waxes) such as, for example, montan ester waxes, sasol waxes, hydrogenated jojoba waxes and syn- thetic waxes such as, for example, polyalkylene waxes and polyethylene glycol waxes.
  • candelilla wax carnauba wax, Japan wax, espar- tograss wax, cork wax, guaruma wax, rice oil
  • Metal salts of fatty acids such as, for example, magnesium, aluminium and/or zinc stea- rate or ricinoleate may be used as stabilizers.
  • Primary UV sun protection filters [0136] The compositions may contain other UV sun protection filters than present in the sun- screen compositions as escribed above. These filters can be chosen from the same group as disclosed as component (c).
  • Secondary UV sun protection filters [0138] Besides the groups of primary sun protection factors mentioned above, secondary UV sun protection factors of the antioxidant type may also be used. Secondary sun protection factors of the antioxidant type interrupt the photochemical reaction chain which is initiated when UV rays penetrate into the skin.
  • Typical examples are amino acids (for example glycine, histidine, tyrosine, tryptophane) and derivatives thereof, imidazoles (for example urocanic acid) and derivatives thereof, peptides, such as D,L-carnosine, D-carnosine, L-carnosine and deriv- atives thereof (for example anserine), carotinoids, carotenes (for example alpha-carotene, beta-carotene, lycopene) and derivatives thereof, chlorogenic acid and derivatives thereof, liponic acid and derivatives thereof (for example dihydroliponic acid), aurothioglucose, propylthiouracil and other thiols (for example thioredoxine, glutathione, cysteine, cystine, cystamine and glycosyl, N-acetyl, methyl, ethyl, propyl, amyl, butyl and lauryl, palmitoyl, oleyl
  • Advantageous inorganic secondary light protection pigments are finely dispersed metal oxides and metal salts which are also mentioned in WO 2005123101 A1.
  • the total quantity of inorganic pigments, in particular hydrophobic inorganic micro-pigments in the finished cos- metic preparation according to the present invention is advantageously from 0.1 to 30% by 230086 weight, preferably 0.5 to 10.0% by weight, in each case based on the total weight of the prep- aration.
  • particulate UV filters or inorganic pigments which can optionally be hydrophobed, such as the oxides of titanium (TiO 2 ), zinc (ZnO), iron (Fe 2 O 3 ), zirconium (ZrO 2 ), silicon (SiO2), manganese (e.g. MnO), aluminium (Al2O3), cerium (e.g. Ce2O3) and/or mixtures thereof.
  • Biogenic agents and antioxidants include, for example, tocopherol, tocopherol acetate, to- copherol palmitate, ascorbic acid, (deoxy)ribonucleic acid and its fragmentation products, ⁇ - glucans, retinol, bisabolol, allantoin, phytantriol, panthenol, AHA acids, amino acids, ceramides, pseudoceramides, essential oils, plant extracts, such as prunus extract, bam- baranus extract and vitamin complexes.
  • Antioxidants interrupt the photochemical reaction chain which is triggered when UV radiation penetrates the skin. Typical examples are amino acids (e.g.
  • glycine histidine, tyro- sine, tryptophan and their derivatives
  • imidazoles e.g. urocanic acid
  • peptides like D,L-carnosine, D-carnosine, L-carnosine and their derivatives (e.g. anserine)
  • carotenoids e.g. -carotene, lycopene
  • chlorogenic acid and its derivatives e.g. dihydrolic acid
  • aurothioglucose propylthioura- cil and other thiols
  • thioredoxin glutathione, cysteine, cystine, cystamin and their glycosyl, N-acetyl, methyl, ethyl, propyl, amyl, butyl and lauryl, palmitoyl, oleyl, linoleyl, cholesteryl and glyceryl esters) and their salts dilaurylthiodipropionate, ditearylthiodipropionate, thiodipropionic acid and its derivatives (esters, ethers, peptides, lipids, nucleotides, nucleosides and salts) as well as sulfoximine compounds (e.g. (e.g.
  • buthionine sulfoximines in very low tolerated dosages (e.g. pmol to mol/kg), furthermore (metal) chelators (e.g. hydroxy fatty acids, palmitic acid, phytinic acid, lactoferrin), hydroxy acids (e.g. (e.g. (e.g.
  • citric acid citric acid, lactic acid, malic acid
  • humic acid gallic acid
  • bile extracts bilirubin, biliverdin, EDTA, EGTA and their derivatives
  • unsatu- rated fatty acids and their derivatives e.g. linolenic acid, linoleic acid, oleic acid
  • folic acid and its derivatives ubiquinone and ubiquinol and their derivatives
  • vitamin C and its derivatives e.g. ascorbyl palmitate, Mg-ascorbyl phosphate, ascorbylacetate
  • tocopherols and deriva- tives e.g.
  • vitamin E acetate
  • vitamin A and derivates vitamin A palmitate
  • conifer aryl benzoate of benzoic resin rutinic acid and its derivatives, glycosylrutin, ferulic acid, furfu- rylidene glucitol, carnosine, butyl hydroxytoluene, butylhydroxyanisole, nordihydroguaiac resin acid, nordihydroguajaretic acid, trihydroxybutyrophenone, uric acid and its derivatives, man- nose and its derivatives, superoxide dismutase, zinc and its derivatives (e.g. e.g. ZnO, ZnSO4) selenium and its derivatives (e.g.
  • stilbenes and their derivatives e.g. styrene oxide, trans-stilbene oxide
  • derivatives suitable for the invention salts, esters, ethers, sugars, nucleotides, nucleosides, peptides and lipids
  • Actives modulating hair pigmentation 230086 Preferred active ingredients for hair lightening are selected from the group consisting of: kojic acid (5-hydroxy-2-hydroxymethyl-4-pyranone), kojic acid derivatives, preferably kojic acid dipalmitate, arbutin, ascorbic acid, ascorbic acid derivatives, preferably magnesium ascor- byl phosphate, hydroquinone, hydroquinone derivatives, resorcinol, resorcinol derivatives, preferably 4-alkylresorcinols and 4-(1-phenylethyl)1,3-dihydroxybenzene (phenylethyl resor- cinol), cyclohexylcarbamates (preferably one or more cyclohexyl carbamates disclosed in WO 2010/122178 and WO 2010/097480), sulfur-containing molecules, preferably glutathione or cysteine, alpha-hydroxy acids (preferably citric acid, lactic acid, malic acid
  • Advantageous skin and hair tanning active ingredients in this respect are substrates or substrate analogues of tyrosinase such as L-tyrosine, N-acetyl tyrosine, L-DOPA or L-dihy- droxyphenylalanine, xanthine alkaloids such as caffeine, theobromine and theophyl-line and derivatives thereof, proopiomelanocortin peptides such as ACTH, alpha-MSH, peptide ana- logues thereof and other substances which bind to the melanocortin receptor, peptides, pyrim- idines, folic acid, copper salts such as copper gluconate, chloride or pyrrolidonate, 1,3,4-oxadi- azole-2-thiols such as 5-pyrazin-2-yl-1,3,4-oxadiazole-2-thiol, curcumin, zinc diglycinate (Zn(GIy)2)
  • Flavonoids which bring about skin and hair tinting or brown-ing (e.g. quercetin, rhamnetin, 230086 kaempferol, fisetin, genistein, daidzein, chrysin and api-genin, epicatechin, diosmin and dios- metin, morin, quercitrin, naringenin, hesperidin, phloridzin and phloretin) can also be used.
  • brown-ing e.g. quercetin, rhamnetin, 230086 kaempferol, fisetin, genistein, daidzein, chrysin and api-genin, epicatechin, diosmin and dios- metin, morin, quercitrin, naringenin, hesperidin, phloridzin and phloretin
  • the amount of the aforementioned examples of additional active ingredients for the modulation of skin and hair pigmentation (one or more compounds) in the products according to the invention is then preferably 0.00001 to 30 wt.-%, preferably 0.0001 to 20 wt.-%, particu- larly preferably 0.001 to 5 wt.-%, based on the total weight of the preparation.
  • Hair growth activators or inhibitors may also comprise one or more hair growth activators, i.e. agents to stimulate hair growth.
  • Hair growth activators are preferably selected from the group consisting of pyrimidine derivatives such as 2,4-diaminopy- rimidine-3-oxide (Aminexil), 2,4-diamino-6-piperidinopyrimidine-3-oxide (Minoxidil) and deriv- atives thereof, 6-amino-1,2-dihydro-1-hydroxy-2-imino-4-piperidinopyrimidine and its deriva- tives, xanthine alkaloids such as caffeine, theobromine and theophylline and derivatives thereof, quercetin and derivatives, dihydroquercetin (taxifolin) and derivatives, potassium channel openers, antiandrogenic agents, synthetic or natural 5-reductase inhibitors, nicotinic acid esters such as tocopheryl nicotinate, benzyl nicotinate and C1-C6 alkyl nicotinate, pro- teins such as for example the tripeptide Lys-
  • formulations and products according to the present invention may com- prise one or more hair growth inhibitors (as described above), i.e. agents to reduce or prevent hair growth.
  • Hair growth inhibitors are preferably selected from the group consisting of activin, activin derivatives or activin agonists, ornithine decarboxylase inhibitors such as alpha-difluo- romethylornithine or pentacyclic triterpenes like for example ursolic acid, betulin, betulinic acid, oleanolic acid and derivatives thereof, 5alpha-reductase inhibitors, androgen receptor antago- nists, S-adenosylmethionine decarboxylase inhibitors, gamma-glutamyl transpeptidase inhibi- tors, transglutaminase inhibitors, soybean-derived serine protease inhibitors, extracts from mi- croorganisms, algae, different microalgae
  • Skin care agents 230086 Typical examples for skin moisture retention regulators an skin repair agents encom- pass sodium lactate, urea and derivatives, glycerol, propylene glycol, 1,2-pentanediol, 1,2- hexanediol and 1,2-octanediol, collagen, elastin or hyaluronic acid, diacyl adipates, petrolatum, urocanic acid, lecithin, allantoin, panthenol, phytantriol, lycopene, (pseudo-)ceramides (prefer- ably Ceramide 2, hydroxypropyl bispalmitamide ME A, cetyloxypropyl glyceryl methoxypropyl myristamide, N- (1-hexadecanoyl)-4-hydroxy-L-proline (1-hexadecyl) ester, hydroxyethyl pal- mityl oxyhydroxy
  • menthyl-3-carboxylic acid N-ethylamide, N a -(L- menthanecarbonyl)glycine ethyl ester, 2-isopropyl-N-2,3- trimethylbutanamide, substi- tuted cyclohexanecarboxylic acid amides, 3- menthoxypropane-1,2-diol, 2-hydroxyethyl menthyl carbonate, 2- hydroxypropyl menthyl carbonate, N-acetylglycine menthyl ester, isop- ulegol, menthyl hydroxycarboxylic acid esters (e.g.
  • Physiological cooling and warming agents are liquid or solid, particular crystalline substances.
  • TRPM8 The sensation of cold is not triggered physically, but by binding of the cooling agent to a cold re- ceptor that is physiologically activated by cool temperatures.
  • TRPM8 is localized at free nerve terminals of afferent A and C fibers and is of central importance for the sensation of cold.
  • Physiological cooling agents such as menthol and menthol compounds are preferably selected from the group formed by the species depicted in the following table (including their optical isomers and racemates):
  • Component FEMA/GRAS Product/Trade- mark Menthol Menthol glyceryl acetal 3807 Frescolat° MGA Menthol glyceryl ketal 3808 Frescolat° MGA Menthol menthyl ether Menthone glyceryl acetal Menthone glyceryl ketal Menthoxy-1,2-propandiol 3784 Menthoxy-2-methyl-1,2-propanediol 3849 Menthyl acetate SymFresh° RF Menthyl ethylene glycol carbonate 3805 Frescolat° MGC Menthyl formiate Menthyl glutamate 4006 Menthyl glycerol carbonate Menthyl hydroxy isobutyrate Menthyl isobutyrate Menthyl lactate Fre
  • Suitable anti-inflammatory agents may be selected from the group consisting of: (i) steroidal anti-inflammatory substances of the corticosteroid type, in particular hydrocor- tisone, hydrocortisone derivatives such as hydrocortisone 17-butyrate, dexamethasone, dex- amethasone phosphate, methylprednisolone or cortisone, (ii) non-steroidal anti-inflammatory substances, in particular oxicams such as piroxicam or tenoxicam, salicylates such as aspirin, disalcid, solprin or fendosal, acetic acid derivatives such as diclofenac, fenclofenac, indomethacin, sulindac, tolmetin or clindanac, fenamates such as mefenamic, meclofenamic, flufenamic or niflumic, propionic acid derivatives such
  • TRPV1 antagonists e.g. 4-t-Butylcyclohexanol
  • NK1 antagonists e.g. Aprepitant, Hydroxyphenyl Propamidobenzoic Acid
  • cannabinoid receptor agonists e.g. Palmitoyl Ethanolamine
  • TRPV3 antagonists e.g. Palmitoyl Ethanolamine
  • Anti-microbial agents are, in principle, all substances effective against Gram- positive bacteria, Gram-negative bacteria and fungi, such as, for example, 4- hydroxybenzoic acid and its salts and esters, N-(4-chlorophenyl)-N'-(3,4- dichlorophenyl)urea, 2,4,4'-trichloro- 2'-hydroxy-diphenyl ether (triclosan), 4-chloro-3,5-dimethyl-phenol, 2,2'-methylenebis(6- bromo-4- chlorophenol), 3-methyl-4-(1-methylethyl)phenol, 2-benzyl-4-chloro-phenol, 3-(4- chlorophenoxy)-1,2-propanediol, 3-iodo-2-propynyl butylcarbamate, chlorhexidine, 3,4,4'-tri- chlorocarbanilide (TTC), antibacterial fragrances, thymol, thyme
  • suitable anti-microbial agents are selected from the group consisting of Caprylhydroxamic Acid, o-Cymen-5-ol, Isopropylparaben, Capryloyl Glycine, Phenylpropanol, Tropolone, PCA Ethyl Cocoyl Arginate, 2-Methyl 5-Cyclohexylpentanol, Phenoxyethanol, Disodium EDTA, Cetrimonium Chloride, Methylparaben and its salts, Sodium Benzoate, Ben- zyl Alcohol, Potassium Sorbate, Benzyl Salicylate, Propylparaben, Sodium Methylparaben, Methylchloroisothiazolinone, Methylisothiazolinone, Ethylhexylglycerin, Butylparaben, Ethylparaben, Sodium Propylparaben, DMDM Hydantoin
  • Enzyme inhibitors are, for example, esterase inhibitors. These are preferably trialkyl citrates, such as trimethyl citrate, tripropyl citrate, triisopropyl citrate, tributyl citrate and, in particular, triethyl citrate (Hydagen CAT). The substances inhibit enzyme activity, thereby reducing the formation of odour.
  • esterase inhibitors such as trimethyl citrate, tripropyl citrate, triisopropyl citrate, tributyl citrate and, in particular, triethyl citrate (Hydagen CAT).
  • esterase inhibitors are sterol sulfates or phosphates, such as, for example, lanosterol, cholesterol, campesterol, stig- masterol and sitosterol sulfate or phosphate, dicarboxylic acids and esters thereof, such as, for example, glutaric acid, monoethyl glutarate, diethyl glutarate, adipic acid, monoethyl adipate, diethyl adipate, malonic acid and diethyl malonate, hydroxycarboxylic acids and esters thereof, such as, for example, citric acid, malic acid, tartaric acid or diethyl tartrate, and zinc glycinate.
  • sterol sulfates or phosphates such as, for example, lanosterol, cholesterol, campesterol, stig- masterol and sitosterol sulfate or phosphate
  • dicarboxylic acids and esters thereof such as, for example, glut
  • Odour absorbers and antiperspirant active agents are substances which are able to absorb and largely retain odour-forming compounds. They lower the partial pressure of the individual components, thus also reducing their rate of diffusion. It is important that perfumes must remain unimpaired in this process. Odour absorbers are not effective against bacteria. They comprise, for example, as main constituent, a complex zinc salt of ricinoleic acid or specific, largely odour-neutral fragrances which are known to the person skilled in the art as "fixatives", such as, for example, extracts of labdanum or styrax or certain abietic acid derivatives.
  • the odour masking agents are fragrances or perfume oils, which, in addition to their function as odour masking agents, 230086 give the deodorants their respective fragrance note.
  • Perfume oils which may be mentioned are, for example, mixtures of natural and synthetic fragrances. Natural fragrances are extracts from flowers, stems and leaves, fruits, fruit peels, roots, woods, herbs and grasses, needles and branches, and resins and balsams. Also suitable are animal products, such as, for exam- ple, civet and castoreum.
  • Typical synthetic fragrance compounds are products of the ester, ether, aldehyde, ketone, alcohol, and hydrocarbon type.
  • Fragrance compounds of the ester type are, for example, benzyl acetate, p-tert-butylcyclohexyl acetate, linalyl acetate, phe- nylethyl acetate, linalyl benzoate, benzyl formate, allyl cyclohexylpropionate, styrallyl propio- nate and benzyl salicylate.
  • the ethers include, for example, benzyl ethyl ether
  • the alde- hydes include, for example, the linear alkanals having 8 to 18 carbon atoms, citral, citronellal, citronellyloxyacetaldehyde, cyclamen aldehyde, hydroxycitronellal, lilial and bourgeonal
  • the ketones include, for example, the ionones and methyl cedryl ketone
  • the alcohols include an- ethole, citronellol, eugenol, isoeugenol, geraniol, linaool, phenylethyl alcohol and terpineol
  • the hydrocarbons include mainly the terpenes and balsams.
  • Es- sential oils of relatively low volatility which are mostly used as aroma components, are also suitable as perfume oils, e.g. sage oil, camomile oil, oil of cloves, melissa oil, mint oil, cinnamon leaf oil, linden flower oil, juniperberry oil, vetiver oil, olibanum oil, galbanum oil, labdanum oil and lavandin oil.
  • Suitable astringent antiperspirant active ingredients are primarily salts of aluminium, zirconium or of zinc.
  • suitable antihydrotic active ingredients are, for example, aluminium chloride, aluminium chlorohydrate, aluminium dichlorohydrate, aluminium sesquichlorohydrate and complex compounds thereof, e.g. with 1,2- propylene glycol, aluminium hydroxyallan- toinate, aluminium chloride tartrate, aluminium zirconium trichlorohydrate, aluminium zirco- nium tetrachlorohydrate, aluminium zirconium pentachlorohydrate and complex compounds thereof, e.g. with amino acids, such as glycine.
  • Standard film formers are, for example, chitosan, microcrystalline chitosan, quaternized chitosan, polyvinyl pyrrolidone, vinyl pyrrolidone/vinyl acetate copolymers, polymers of the acrylic acid series, quaternary cellulose derivatives, collagen, hyaluronic acid and salts thereof and similar compounds.
  • Suitable antidandruff agents are Pirocton Olamin (1-hydroxy-4-methyl-6-(2,4,4-trime- thylpentyl)-2-(1H)-pyridinone monoethanolamine salt), Baypival ® (Climbazole), Ketoconazol® (4-acetyl-1- ⁇ 4-[2-(2,4-dichlorophenyl) r-2-(1H-imidazol-1-ylmethyl)-1,3-dioxylan-c-4-ylmethox- yphenyl ⁇ -piperazine, ketoconazole, elubiol, selenium disulfide, colloidal sulfur, sulfur polyeth- ylene glycol sorbitan monooleate, sulfur ricinol polyethoxylate, sulfur tar distillate, salicylic acid 230086 (or in combination with hexachlorophene), undecylenic acid, monoethanolamide sulfosuccin- ate
  • Preferred cosmetics carrier materials are solid or liquid at 25°C and 1013 mbar (includ- ing highly viscous substances) as for example glycerol, 1,2-propylene glycol, 1,2-butylene gly- col, 1,3-propylene glycol, 1,3-butylene glycol, ethanol, water and mixtures of two or more of said liquid carrier materials with water.
  • these preparations according to the inven- tion may be produced using preservatives or solubilizers.
  • Other preferred liquid carrier sub- stances which may be a component of a preparation according to the invention are selected from the group consisting of oils such as vegetable oil, neutral oil and mineral oil.
  • Preferred solid carrier materials which may be a component of a preparation according to the invention are hydrocolloids, such as starches, degraded starches, chemically or physi- cally modified starches, dextrins, (powdery) maltodextrins (preferably with a dextrose equiva- lent value of 5 to 25, preferably of 10 – 20), lactose, silicon dioxide, glucose, modified cellu- loses, gum arabic, ghatti gum, traganth, karaya, carrageenan, pullulan, curdlan, xanthan gum, gellan gum, guar flour, carob bean flour, alginates, agar, pectin and inulin and mixtures of two or more of these solids, in particular maltodextrins (preferably with a dextrose equivalent value of 15 – 20), lactose, silicon dioxide and/or glucose.
  • hydrocolloids such as starches, degraded starches, chemically
  • hydrotropes for example ethanol, isopropyl alcohol or polyols
  • Suitable polyols preferably contain 2 to 15 carbon atoms and at least two hydroxyl groups.
  • the polyols may contain other functional groups, more especially amino groups, or may be modified with nitrogen.
  • Typical examples are ⁇ glycerol; ⁇ alkylene glycols such as, for example, ethylene glycol, diethylene glycol, propylene glycol, butylene glycol, hexylene glycol and polyethylene glycols with an average molecular weight of 100 to 1000 Dalton; ⁇ technical oligoglycerol mixtures with a degree of self-condensation of 1.5 to 10, such as for example technical diglycerol mixtures with a diglycerol content of 40 to 50% by weight; ⁇ methylol compounds such as, in particular, trimethylol ethane, trimethylol propane, trimethylol butane, pentaerythritol and dipentaerythritol; ⁇ lower alkyl glucosides, particularly those containing 1 to 8 carbon atoms in the alkyl group, for example methyl and butyl glucoside; ⁇ sugar alcohols containing 5 to 12 carbon atoms, for example sorbitol or mannito
  • Preservatives and/or product protection agents 230086 [0174] Suitable preservatives are listed in Appendix 6, Parts A and B of the Kosmetikver- owski (“Cosmetics Directive”). [0175] Suitable species can be selected from the group consisting of preservatives selected from the group consisting of benzoic acid and para-hydroxybenzoic acid, their esters and salts, benzyl benzoate, propionic acid and its salts, salicylic acid and its salts, 2,4-hexadienoic acid (sorbic acid) and its salts, levulinic acid and its salts, anisic acid and its salts, perillic acid and its salts, cinnamic acid and its salts, formaldehyde and paraformaldehyde, 4-hydroxy benzal- dehyde, ortho-, meta-, and para-anisic aldehyde, cinnamic aldehyde, cinnamic alcohol, 2-hy
  • perfume oils are mixtures of natural and synthetic perfumes. Natural perfumes include the extracts of blossoms (lily, lavender, rose, jasmine, neroli, ylang-ylang), stems and leaves (geranium, patchouli, petitgrain), fruits (anise, coriander, caraway, juniper), fruit peel (bergamot, lemon, orange), roots (nutmeg, angelica, celery, cardamom, costus, iris, calmus), woods (pinewood, sandalwood, guaiac wood, cedarwood, rosewood), herbs and grasses (tar- ragon, lemon grass, sage, thyme), needles and branches (spruce, fir, pine, dwarf pine), resins and balsams (galbanum, elemi, benzoin, myrrh, olibanum, opoponax).
  • fragrances encompass: [0180] Aliphatic esters such as 1-phenyl-2-methyl-2-propyl acetate, 2-methylbutyl butyrate, aldron (4-[(3,3-dimethylbicyclo[2.2.1]hept-2-yl)methyl]-2-methylcyclohexanone), allyl 2-cyclo- hexyloxyglycolate, allyl 2-pentyloxyglycolate, allyl 3-cyclohexylpropionate, allyl capronate, amarocite (1,1-dimethoxy-2,2,5-trimethyl-4-hexene), ambral (dodecahydro-3,8,8,11a-tetrame- thyl-5H-3.
  • Aliphatic esters such as 1-phenyl-2-methyl-2-propyl acetate, 2-methylbutyl butyrate, aldron (4-[(3,3-dimethylbicyclo[2.2.1]hept-2-yl)methyl]-2-methyl
  • ambretolide (9-hexadecene-16-olide), ambrinol S (1,2,3,4,4a,5,6,7-octahydro-2,6,6-trimethyl-2-napthalinol), ambrinolepoxide, Ambrocenides (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanoazuleno(5,6-d)-1,3-di- oxole), Ambroxide (3a,6,6, 9a-tetramethyldodecahydronaphtho[2,1-b]-furan), amyl formate, aureliones (7-cyclohexadecen-1-one and 8-cyclohexadecen-1-one), boronal [2-methyl-4-(2, 6,6-trimethyl-1-cyclo
  • Aliphatic aldehydes and their acetals such as B. Hexanal; heptanal; octanal; nona- nal; decanal; undecanal; dodecanal; tridecanal; 2-methyloctanal; 2-methylnonanal; (E)-2-hex- enal; (Z)-4-heptenal; 2;6-dimethyl-5-heptenal; 10-undecenal; (E)-4-decenal; 2-dodecenal; 2,6,10-trimethyl-9-undecenal; 2,6,10-trimethyl-5,9-undecadienal; heptanaldiethyl acetal; 1,1- dimethoxy-2,2,5-trimethyl-4-hexene; citronellyloxyacetaldehyde; 1-(1-methoxy-propoxy)- (E/Z)-3-hexene; [0182] Aliphatic ketones and their acetals
  • Aliphatic sulfur-containing compounds such as 3-methylthiohexanol; 3-methylthio- hexyl acetate; 3-mercaptohexanol; 3-mercaptohexyl acetate; 3-mercaptohexyl butyrate; 3- acetylthiohexyl acetate; 1-menthen-8-thiol; 230086
  • Aliphatic nitriles such as e.g., 2-nonenoic acid nitrile; 2-undecenoic acid nitrile; 2- tridecenoic acid nitrile; 3,12-tridecadienoic acid nitrile; 3,7-
  • Benzyl alcohol 1-phenylethyl alcohol; 2-phenylethyl alcohol; 3-phenylpropanol; 2-phenylpropanol; 2-phenoxyethanol; 2,2-dimethyl-3-phenylpropa- nol; 2,2-dimethyl-3-(3-methylphenyl)propanol; 1,1-dimethyl-2-phenylethyl alcohol; 1,1-dime- thyl-3-phenylpropanol; 1-ethyl-1-methyl-3-phenylpropanol; 2-methyl-5-phenylpentanol; 3-me- thyl-5-phenylpentanol; 3-phenyl-2-propen-1-ol; 4-methoxybenzyl alcohol; 1-(4-iso- propylphenyl)ethanol; [0186] Araliphatic ethers, such as for example, 2-phenylethyl methyl ether; 2-phenylethyl isoamyl ether; 2-phenyleth
  • acetophenone 4-methylacetophe- none; 4-methoxyacetophenone; 4-tert.- butyl-2,6-dimethylacetophenone; 4-phenyl-2-buta- none; 4-(4-hydroxyphenyl)-2-butanone; 1-(2-naphthalenyl)ethanone; 2-benzofuranyleth- anone; (3-methyl-2-benzofuranyl)ethanone; benzophenone; 1,1,2,3,6-hexamethyl-5-indanyl methyl ketone; 6-tert.
  • Aromatic and araliphatic carboxylic acids and their esters such as Benzoic acid; phenylacetic acid; methyl benzoate; ethyl benzoate; hexyl benzoate; benzyl benzoate; methyl phenyl acetate; ethyl phenyl acetate; geranyl phenyl acetate; phenyl ethyl phenyl acetate; me- thyl cinnamate;
  • Citronellol Citronellol; geraniol; nerol; linalool; lavadulol; nerolidol; farnesol; tetrahydrolinalool; tetrahydrogeraniol; 2,6-dimethyl-7-octen-2-ol; 2,6-Dime- thyloctan-2-ol; 2-Methyl-6-methylen-7-octen-2-ol; 2,6-Dimethyl-5,7-octadien-2-ol; 2,6-Dime- thyl-3,5-octadien-2-ol; 3,7-Dimethyl-4,6-octadien-3-ol; 3,7-dimethyl-1,5,7-octatrien-3-ol 2,6- 230086 dimethyl-2,5,7-octatrien-1-ol; and their formates, acetates, propionates, isobutyrates, butyr-
  • Cycloaliphatic alcohols such as alpha,3,3-trimethylcyclohexylmethanol; 1-(4-iso- propylcyclohexyl)ethanol; 2-methyl-4-(2,2,3-trimethyl-3-cyclopent-1-yl)butanol; 2-Methyl-4- (2,2,3-trimethyl-3-cyclopent-1-yl)-2-buten-1-ol; 2-Ethyl-4-(2,2,3-trimethyl-3-cyclopent-1-yl)-2- buten-1-ol; 3-Methyl-5-(2,2,3-trimethyl-3-cyclopent
  • Cycloaliphatic aldehydes such as 2,4-dimethyl-3-cyclohexenecarbaldehyde; 2-me- thyl-4-(2,2,6-trimethyl-cyclohexen-1-yl)-2-butenal; 4-(4-hydroxy-4-methylpentyl)-3-cyclohex- enecarbaldehyde; 4-(4-methyl-3-penten-1-yl)-3-cyclohexenecarbaldehyde; [0198] Cycloaliphatic ketones, such as B.1-(
  • Esters of aliphatic carboxylic acids such as (E)- and (Z)-3-hexenyl formate; ethyl acetoacetate; isoamyl acetate; hexyl acetate; 3,5,5-trimethylhexyl acetate; 3-methyl-2-butenyl acetate; (E)-2-hexenyl acetate; (E)- and (Z)-3-hexenyl acetate; octyl acetate; 3-octyl acetate; 1-octen-3-yl acetate; ethyl butyrate; butyl butyrate; isoamyl butyrate; hexyl butyrate; (E)- and (Z)-3-hexenyl isobutyrate; Hexyl crotonate; ethyl
  • Hydrocarbons such as 3-carene; alpha-pinene; beta-pinene; alpha-terpinene; gamma-terpinene; p-cymene; bisabolene; camphene; caryophyllene; cedrene; farnesene; 230086 limonene; longifolene; myrcene; ocimene; valencene; (E,Z)-1,3,5-undecatriene; styrene; di- phenylmethane; the aliphatic alcohols such as Hexanol; Octanol; 3-octanol; 2,6-dimethyl
  • Phenols, phenyl ethers and phenyl esters such as Tarragol; anethole; eugenol; eu- genyl methyl ether; isoeugenol; isoeugenyl methyl ether; thymol; carvacrol; diphenyl ether; beta-naphthyl methyl ether; beta-naphthyl ethyl ether; beta-naphthyl isobutyl ether; 1,4-di- methoxybenzene; eugenyl acetate; 2-methoxy-4-methylphenol; 2-ethoxy-5-(1-propenyl)phe- nol; p-cresylphenyl acetate; [0208] Nitrogen-containing aromatic compounds, such as B.2,4,6-Trinitro-1,3-dimethyl-5- tert.- butylbenzene; 3,5-dinitro-2,
  • Suitable dyes are any of the substances suitable and approved for cosmetic purposes as listed, for example, in the publication “Kosmetician Anlagenrbesch” of the Farbstoffkommis- sion der Deutschen Anlagenstician, Verlag Chemie, Weinheim, 1984, pages 81 to 106. Examples include cochineal red A (C.I.16255), patent blue V (C.I.42051), indigotin (C.I.
  • Luminol may also be present as a luminescent dye.
  • Advantageous coloured pigments are for example titanium dioxide, mica, iron oxides (e.g. Fe 2 O 3 Fe 3 O 4 , FeO(OH)) and/or tin oxide.
  • Advantageous dyes are for example carmine, Berlin blue, chromium oxide green, ultramarine blue and/or manga- nese violet.
  • compositions according to the present inventions are selected from the group of products for treatment, protecting, care and cleansing of the skin and/or hair or as a make- 230086 up product, preferably as a leave-on product (meaning that the one or more compounds stay on the skin and/or hair for a longer period of time, compared to rinse-off products).
  • the formulations according to the invention are preferably in the form of an emulsion, e.g.
  • W/O water-in-oil
  • O/W oil-in-water
  • W/O/W water-in-oil-in-water
  • O/W/O oil-in-water- in-oil
  • emulsion PIT emulsion
  • Pickering emulsion emulsion with a low oil content, micro- or nanoemulsion
  • a solution e.g. in oil (fatty oils or fatty acid esters, in particular C6-C32 fatty acid C2-C30 esters) or silicone oil
  • dispersion suspension
  • creme lotion or milk, depending on the production method and ingredients
  • a gel including hydrogel, hydrodispersion gel, oleogel
  • spray e.g.
  • a detergent e.g. soap, synthetic detergent, liquid washing, shower and bath preparation, bath product (capsule, oil, tablet, salt, bath salt, soap, etc.), effervescent prepara- tion, a skin care product such as e.g. an emulsion (as described above), ointment, paste, gel (as described above), oil, balsam, serum, powder (e.g.
  • eau de perfume eau de toilette
  • after-shave a mask, a pencil, stick, roll-on, pump, aerosol (foaming, non-foaming or post-foaming), a deodorant and/or antiperspirant, mouthwash and mouth rinse, a foot care product (including keratolytic, deodorant), an insect repellent, a sunscreen, after- sun preparation, a shaving product, aftershave balm, pre- and aftershave lotion, a depilatory agent, a hair care product such as e.g.
  • shampoo including 2-in-1 shampoo, anti-dandruff shampoo, baby shampoo, shampoo for dry scalps, concentrated shampoo
  • conditioner e.g. gel or wax
  • hair smoothing agent e.g. temporary direct-dyeing hair dye, semi-permanent hair dye, permanent hair dye, hair condi- tioner, hair mousse, eye care product, make-up, make-up remover or baby product.
  • Auxiliary substances and additives can be included in quantities of 5 to 99 wt.-%, pref- erably 10 to 80 wt.-%, based on the total weight of the formulation.
  • the amounts of cosmetic or dermatological auxiliary agents and additives and perfume to be used in each case can easily be determined by the person skilled in the art by simple trial and error, depending on the nature of the particular product.
  • the preparations can also contain water in a quantity of up to 99 wt.-%, preferably from about 5 to about 80 wt.-% and more preferably either from about 10 to about 50 or from about 60 to about 80 wt.-% based on the total weight of the preparation.
  • a composition of at least one 1,2-alkanediol and at least one alkyl benzyl alcohol, in particular of a ternary composition comprising 1,2-hexanediol, 1,2-oc- tanediol and 4-methyl benzyl alcohol to a cosmetic base, preferably a sun care composition, and providing mineral sunscreen pigments such as for example zinc oxide in high amounts of from 1 to about 30 wt.-%, results in an improved antimicrobial stability and an increased pro- tection against color degradation and phase separation.
  • the amounts of compounds are calculated based on the overall cosmetic compositions.
  • another object is related to a method for preserving a cosmetic composition, and/or a method for stabilizing a cosmetic composition comprising at least one mineral sun- screen pigment against yellowing and/or phase separation, comprising or consisting of the following steps: (i) providing a cosmetic base; (ii) providing at least one mineral sunscreen pigment, preferably in an amount of about 1 to about 30 wt.-%, more preferably in an amount of about 5 to about 28 wt.-%, most preferably in an amount of about 10 to about 25 wt.-%; and (ii) adding at least one 1,2-alkanediol, preferably two alkanediols, preferably 1,2-hex- anediol and/or 1,2-octanediol, preferably in an amount of about 0.1 to about 10 wt.-%, more preferably in an amount of about 0.5 to about 2 wt.-%, most preferably in an amount of about 1 to about 5
  • the overall cosmetic composition may also comprise a non-mineral sun protection filter and/or other suitable additives.
  • Another object of the present invention covers the use of a composition comprising or consisting of - at least one 1,2-alkanediol with 5 to 12 carbon atoms, preferably at least two 1,2-alkanediols each independently with 5 to 12 carbon atoms, - at least one alkyl benzyl alcohol, preferably 4-methyl benzyl alcohol, and optionally - at least one solvent for preserving cosmetic compositions comprising mineral sunscreen pigments, preferably pre- sent in amounts of from about 1 to about 30 wt.-% and/or stabilizing such cosmetic composi- tions against yellowing and/or phase separation.
  • the composition may also com- prise a non-mineral sun protection filter and/or other suitable additives.
  • any preferred embodiment such as for example preferred combinations, ranges or conditions, disclosed above and associated with specific compositions or compositions count also for the methods and uses as defined above. Any repetition is therefore superfluous.
  • Fig.1 shows the results of the preservation test for Example 1. The PET results meet Ph. Eur. Criteria A.
  • Fig. 2 shows the results of the preservation test for Comparative Example C1. The formulation failed the PET according to Ph. Eur. 230086
  • Fig. 3 shows the results of the preservation test for Comparative Example C2.
  • Fig. 4 shows the results of the preservation test for Comparative Example C3.
  • the formulation failed the PET according to Ph. Eur. [0224]
  • Fig.5 shows the results of the preservation test for Comparative Example C4.
  • the PET results meet Ph. Eur. Criteria A.
  • Fig.6 shows the results of the preservation test for Comparative Example C5.
  • the PET results meet Ph. Eur. Criteria B.
  • Fig.7 shows the results of the stability test for Comparative Example C3 after 1 month. From left to right, the vials were stored at 5 °C, room temperature (dark), room temperature (light), 40 °C and 50 °C.
  • Fig.8 shows the results of the stability test for Comparative Example C3 after 3 months. From left to right, the vials were stored at 5 °C, room temperature (dark), room temperature (light), 40 °C and 50 °C.
  • Fig.9 shows the results of the stability test for Comparative Example C4 after 1 month. From left to right, the vials were stored at 5 °C, room temperature (dark), room temperature (light), 40 °C and 50 °C.
  • Fig. 10 shows the results of the stability test for Comparative Example C4 after 3 months.
  • Fig.11 shows the results of the stability test for Comparative Example C5 after 1 month. From left to right, the vials were stored at 5 °C, room temperature (dark), room temperature (light), 40 °C and 50 °C.
  • Fig. 12 shows the results of the stability test for Comparative Example C5 after 3 months. From left to right, the vials were stored at 5 °C, room temperature (dark), room tem- perature (light), 40 °C and 50 °C.
  • Example 1 Comparative Examples C1 to C5
  • Example 1 is according to the invention, Examples C1 to C5 serve for comparison.
  • Phase A was heated to 85 °C and then phase B was added to phase A and homog- enized over 10 minutes using an Ultra Turrax® T25 stirrer with a stirring speed of 8000 rpm.
  • phase C was added to the hot phase A/B.
  • Phase D was mixed and the ingredients were dissolved at room temperature, if necessary, the mixture was slightly heated. The pH value of the mixture was checked at room temperature and needs to be 7.0, afterwards phase D was added to phase A/B/C and homogenized using an Ultra Turrax® T25 stirrer with a stirring speed of 13000 rpm (1min/100g). While stirring the mixture was cooled down to ambient temperature and homogenized again.
  • Phase A was heated to 80 °C and then ZnO was added to phase A and homogenized over 10 minutes using an Ultra Turrax® T25 stirrer with a stirring speed of 10000 rpm. During the last 30 sec- onds of homogenization, Keltrol® was added. Phase C was mixed and the ingredients were dissolved at room temperature, if necessary, the mixture was slightly heated. The pH value of the mixture was checked at room temperature and needs to be 7.0 or higher. If necessary, the pH was adjusted to 7 using Biotive® L-Arginine. Phase C was heated to 80 °C and then added to phase A/B and homogenized using an Ultra Turrax® T25 stirrer with a stirring speed of 13000rpm (1min/100g).
  • the PET was performed, following European Pharmaco- poeia, to evaluate the efficacy of antimicrobial systems against 5 microorganisms: Escherichia coli (ATCC 8739), Pseudomonas aeruginosa (ATCC 9027), Staphylococcus aureus (ATCC 6538) Candida albicans (ATCC 10231), Aspergillus brasiliensis (ATCC 16404).
  • the results of the PET tests are depicted in Figures 1 to 6 and summarized in Table 3. [0237] As summarized in Table 3, Example 1 passed the preservation test and fulfilled the European Pharmacopoeia Criteria A (see Figure 1). In contrast, comparative examples C1 to C3 failed the preservation test (see Figures 2 and 3).
  • Example 1 In comparison to Example 1, C1 and C2 did not contain 4-methyl benzyl alcohol, which was added to the formulation in form of the commercially available liquid mixture SymTriol. In addition, C1 did not contain 1,3-propanediol, whereas this compound formed part of Example 1 and C2. SymTriol additionally contains 1,2- hexanediol and 1,2-octanediol, so that the general impact of 1,2-alkanediols was separately checked with C3 to C5. Formulation C3 only contained a small amount of 1,2-heptanediol and failed the preservation test (see Figure 4). In C4, 1,3-propanediol was additionally present resulting in a successful preservation which fulfilled the Eur. Ph.
  • the formulation according to the invention is capable of stabilizing high levels of a mineral sunscreen pigment, such as zinc oxide, against both microbial contamination and sam- ple degradation.
  • Table 3 Results of PET and stability tests for formulations of ZnO OW emulsions Example/Comparative Exam- Result of PET test Result of stability test ple 1 Ph. Eur. A stable C1 failed test stopped after failed PET C2 failed test stopped after failed PET C3 failed unstable C4 Ph. Eur. A unstable C5 Ph. Eur. B unstable
  • Formulation examples for cosmetic compositions based on sunscreen compositions comprising high amounts of zinc oxide are compiled in Tables F1 to F5.
  • Table F1 Cosmetic sun protection composition (amounts in wt.-%) Ingredient Amount Zinc oxide 25.0 Polyglyceryl dimer soyate 0.80 Sorbitane stearate 1.00 Tocopheryl acetate 0.50 Glyceryl stearate. PEG-100 Stearate 3.00 PEG-40. hydrogenated castor oil 1.00 Butyrospermum parkii (Shea Butter) 1.00 C12-15 alkyl benzoate 6.50 Butylene glycol 5.00 Xanthan gum 0.30 Disodium EDTA 0.10 Allantoin 0.10 Polyacrylamide.
  • SPF 40 (amounts in wt.-%) Ingredients INCI Amount Dehymuls PGPH Polyglyceryl-2 dipolyhydroxystearate 5.00 Copherol 1250 Tocopheryl acetate 0.50 Permulgin 3220 Ozocerite 0.50 Tegosoft TN C12-15 Alkyl benzoate 10.00 Neo Heliopan® ZnO 300 Zinc oxide 20.00 Neo Heliopan ® E1000 Isoamyl-p-methoxycinnamate 2.00 Neo Heliopan ® 303 Octocrylene 2.00 Neo Heliopan ® MBC 4-Methylbenzylidene camphor 3.00 SymTriol® 1,2-Hexandiol/1,2-Octanediol/4-Methyl benzyl alcohol 1.00 EDETA BD Disodium EDTA 0.10 Glycerol Glycerol 4.00 Magnesium sulfate Magnesium sulfate Magnesium sulfate Magnesium

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Abstract

Suggested is a sunscreen composition comprising or consisting of: (a) at least one metallic sun protection pigment, (b) at least one alkyl benzyl alcohol, (c) optionally at least one non-mineral sun protection filter (d) and optionally at least one solvent.

Description

230086 A sunscreen composition AREA OF INVENTION [0001] The present invention refers to the area of cosmetics, in particular sun care composi- tions with high amounts of mineral sun care pigments such as zinc oxide and relates to im- provements in their preservation and stabilization. BACKGROUND OF THE INVENTION [0002] Mineral sunscreen particles, such as zinc oxide in particular, are natural UV filters. They are characterized by the fact that they absorb both UVA and UVB radiation and the corre- sponding formulations are extraordinarily water-resistant. Sunscreens with high zinc oxide con- tents are therefore particularly popular with surfers, for example. [0003] The problem is that for sufficient UV protection, comparatively high amounts of zinc oxide must be contained in the corresponding sunscreen products. This leads to problems with both the preservation and the stability of the products: on the one hand, discoloration (yellow tint) often occurs, and on the other hand, the products easily segregate, especially if they have been exposed to higher temperatures over a longer period of time, both of which lead to un- stable products. RELEVANT PRIOR ART [0004] WO 2008119841 A2 (SYMRISE) solves the problem of improving the antimicrobial ac- tivity of mixtures of 1,2-hexanediol and 1,2-octanediol by adding 4-methyl benzyl alcohol. [0005] WO 2018068825 A1 (SYMRISE) claims the use of certain benzoic and furoic acid es- ters as antimicrobial agents. [0006] WO 2021099090 A1 (BEIERSDORF) relates to a cosmetic sunscreen composition containing a) spherical, hollow silica particles with an average particle diameter of between 15 - 20 µm and b) titanium dioxide and/or zinc oxide with a primary particle size of between 10 to 200 nm. [0007] WO 2022006215 A1 (AMYYRIS) provides sunscreen formulations containing a metal oxide sunscreen, squalane, and an antioxidant. The sunscreen formulations provided have increased SPF per unit mass of the metal oxide compared to sunscreen formulations that con- tain metal oxide without the addition of squalane and antioxidant. Also provided are methods of preventing UV damages to skin involving the application of the sunscreen formulation. [0008] US 2012201902 AA (UNIV COLUMBIA) relates to a preservative or antimicrobial com- positions which comprise low concentrations of botanical extracts, in synergistic combinations with alkanediols in a solvent system, optionally with fruit acids. Additionally, the present inven- tion relates to a preservative or antimicrobial compositions which comprise a silver compound, an essential oil or individual constituent, one or more zinc salts, and one or more alkanediol. 230086 [0009] US 2016008246 AA (MARY KAY) describes compositions useful for protecting the skin from the sun. The compositions comprise cosmetic ingredients such as zinc oxide, titanium dioxide, butyloctyl salicylate, and a dermatologically acceptable vehicle. The compositions may further comprise additional ingredients such as cyclopentasiloxane, neopentyl glycol dihep- tanoate, butylene glycol, caprylyl methicone, PEG-9 polydimethylsiloxyethyl dimethicone, glyc- erin, polyglyceryl-6 polyricinoleate, lauric acid, aluminum hydroxide, potassium sorbate, and citric acid. [0010] US 2020397674 AA (LOVE SUN BODY LLC) provides a sunscreen composition in- cluding non-nano zinc oxide, a carrier, and a component selected from the group consisting of a humectant, a thickener, a dispersing agent, an emulsifier, an emollient, a preservative, an antioxidant, an odorant, and combinations thereof. OBJECT OF THE INVENTION [0011] Therefore, it has been the object of the present invention to provide new sunscreen compositions with high amounts of mineral sun protection pigments, for incorporation into cos- metic compositions which provide a higher product stability in general and an increased pro- tection against color degradation and phase separation. In addition, these products should show an improved antimicrobial stability. BRIEF DESCRIPTION OF THE INVENTION [0012] A first object of the present invention refers to a sunscreen composition comprising or consisting of: (a) at least one mineral sunscreen pigment, (b) at least one alkyl benzyl alcohol, (c) optionally at least one non-mineral sun protection filter (d) and optionally at least one solvent. [0013] The composition is considered to be added to a cosmetic base formulation (which does not contain UV protection filters) to introduce a high amount of mineral sun protection pigments and to establish a desired SPF of preferably 10, 20, 25, 30 or 50. [0014] Surprisingly it was found that compositions as described above show not only antimi- crobial protection but also an improved formulation stability, especially at higher concentrations of mineral screen pigment. [0015] Mineral sunscreen pigments [0016] Suitable mineral sunscreen pigments (component a) encompass oxides of titanium (TiO2), zinc (ZnO), iron (Fe2O3), zirconium (ZrO2), silicon (SiO2), manganese (e.g., MnO), alu- minium (Al2O3), cerium (e.g., Ce2O3) and/or mixtures thereof. 230086 [0017] Preferably, said mineral sunscreen pigment is zinc oxide or nano zinc oxide. Zinc oxide is an advantageous sunscreen pigment, since it shows strong sun protection while being read- ily available and non-toxic. However, it is difficult to formulate zinc oxide and especially nano zinc oxide, especially in higher amounts with certain cosmetic formulations. However, in the present sunscreen composition with at least one alkyl benzyl alcohol, zinc oxide has an im- proved solubility and formulability over the other mineral sunscreen pigments. This is en- hanced further by the addition of at least one 1,2-alkanediol, preferably two or more 1,2-al- kanediols, each independently with 5 to 12 carbon atoms. [0018] Alkyl benzyl alcohols [0019] Preferred alkyl benzyl alcohols (component b) may follow formula (I)
Figure imgf000004_0001
wherein R1, R2 and R3 stand for hydrogen or an alkyl group with 1, 2, 3 or 4 carbon atoms, on condition that at least one of the substituents R1, R2 or R3 is different from hydrogen. [0020] Suitable preferred compounds for component b) are selected from the group consisting of methyl benzyl alcohol, ethyl benzyl alcohol, propyl benzyl alcohol, butyl benzyl alcohol, iso- butyl benzyl alcohol, tert.-butyl benzyl alcohol, dimethyl benzyl alcohol, diethyl benzyl alcohol, dipropyl benzyl alcohol, dibutyl benzyl alcohol, di-isobutyl benzyl alcohol, di-tert.-butyl benzyl alcohol, trimethyl benzyl alcohol, triethyl benzyl alcohol, tripropyl benzyl alcohol, tributyl benzyl alcohol, tri-isobutyl benzyl alcohol, tri-tert.-butyl benzyl alcohol, methyl ethyl benzyl alcohol, methyl propyl benzyl alcohol, methyl butyl benzyl alcohol and mixtures including the various isomers thereof. These compounds show the above-described effect of improved solubility and formulability of mineral sunscreen pigment in general and specifically an increased protection against color degradation and phase separation. They are effective in increasing composition or formulation stability and enhancing antimicrobial resistance. They are particularly effective against Aspergillus brasiliensis. [0021] A preferred alkyl benzyl alcohol is 4-methyl benzyl alcohol. The addition of 4-methyl benzyl alcohol has the advantageous effect of improving the preservation of the sunscreen composition against microbial species, and at the same time it is particularly potent in improv- ing solubility and formulability of mineral sunscreen pigment. Surprisingly, the alkyl benzyl al- cohols and in particular 4-methyl benzyl alcohol enhance the anti-allergic or anti-inflammatory efficacy of the mineral sunscreen pigment, in particular when it is zinc oxide or nano zinc oxide. [0022] Non-mineral sun protection filters 230086 [0023] Non-mineral sun protection filters forming optional component (c) represent, for exam- ple, non-mineral substances (light filters) which are liquid or crystalline at room temperature and which are capable of absorbing ultraviolet radiation and of releasing the energy absorbed in the form of longer-wave radiation, for example heat. [0024] Therefore, said non-mineral sun protection filters are UV-protection filters, preferably selected from the group consisting of UVA filters, UVB filters, broadband filters and mixtures thereof. [0025] The compositions according to the invention advantageously contain at least one UV- A filter and/or at least one UV-B filter and/or a broadband filter. [0026] The filters cited below are preferred but non-limiting examples which can be used within the context of the present invention. Non-mineral filters which are preferably used are selected from the group consisting of one, two, three, four, five or more of the following species: INCI Declaration Product/Trademark 4-Methylbenzylidene Camphor Neo Heliopan® MBC Benzophenone-3 Neo Heliopan® BB Benzophenone-4 Benzophenone-4, Benzophenone-5 Benzophenone-8 Benzylidene Camphor Sulfonic Acid Mexoryl SL Bis-(Diethylaminohydroxybenzoyl Benzoyl) Piperazine HAA299 (nano) Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine Neo Heliopan® BMT Butyl Methoxydibenzoylmethane Neo Heliopan® 357 Camphor Benzalkonium Methosulfate Mexoryl SK Cinoxate Diethylamino Hydroxy benzoyl Hexyl Benzoate Uvinul® A Plus Diethylhexyl Butamido Triazone Uvasorb® HEB Disodium Phenyl Dibenzimidazole Tetrasulfonate Neo Heliopan® AP Drometrizole Trisiloxane Mexoryl XL Ethylhexyl Dimethyl PABA Ethylhexyl Dimethyl PABA Ethylhexyl Methoxycinnamate Neo Heliopan® AV Ethylhexyl Salicylate Neo Heliopan® OS Ethylhexyl Triazone Neo Heliopan® EHT 230086 Homosalate Neo Heliopan® HMS Isoamyl p-Methoxycinnamate Menthyl Anthranilate Neo Heliopan® MA Methoxypropylamino Cyclohexenylidene Ethoxyethylcyanoacetate Mexoryl® 400 Methylene Bis-Benzotriazolyl Tetramethylbutylphenol Tinosorb®M Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (nano) Tinosorb®M Octocrylene Neo Heliopan® 303 PABA PEG-25 PABA Phenylbenzimidazole Sulfonic Acid Neo Heliopan® Hydro Phenylene Bis-Diphenyltriazine TriasorbTM Polyacrylamidomethyl Benzylidene Camphor Mexoryl SW Polysilicone-15 Parsol® SLX TEA-Salicylate Terephthalylidene Dicamphor Sulfonic Acid Mexoryl SX Tris-biphenyl triazine/Tris-biphenyl triazine (nano) Tinosorb® A2B [0027] Particularly preferred non-mineral filters encompass: INCI-Declaration Product/Trademark UVB UVA UVB / UVA Homosalate Neo Heliopan® HMS X Benzophenone-3 Neo Heliopan® BB X Phenylbenzimidazole Sulfonic Acid Neo Heliopan® Hydro X Butyl Methoxydibenzoylme- thane Neo Heliopan® 357 X Octocrylene Neo Heliopan® 303 X Ethylhexyl Methoxycinnamate Neo Heliopan® AV X Isoamyl p-Methoxycinnamate Neo Heliopan® E1000 X Ethylhexyl Triazone Neo Heliopan® EHT X 4-Methylbenzylidene Camphor Neo Heliopan® MBC X Ethylhexyl Salicylate Neo Heliopan® OS X Disodium Phenyl Dibenzimidaz- ole Tetrasulfonate Neo Heliopan® AP X 230086 Bis-Ethylhexyloxyphenol Meth- oxyphenyl Triazine Neo Heliopan® BMT X Menthyl Anthranilate Neo Heliopan® MA X [0028] In a preferred embodiment the sun protection filter forming component (c) represents a composition of UVA- and UVB-filters selected from the group consisting of homosalate, oc- tocrylene, bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, ethylhexyl salicylate and mixtures thereof. Particular preferred is a composition of all these filters which is commercially available under the trademark NeoHeliopan® Flat (SYMRISE), which also subject to WO 2020088778 A1. [0029] The use of non-mineral sun protection filters in conjunction with mineral sunscreen pig- ments, such as zinc oxide, has been shown to improve the SPF of the sunscreen composition. However, while high amounts of mineral and non-mineral sun protection filters should be in- corporated into the sunscreen composition, this can exceed the solubility limit. Surprisingly, it was possible to include higher amounts of mineral sunscreen pigments and non-mineral sun protection filters in compositions, sunscreen products and cosmetic formulations when the for- mulation included alkyl benzyl alcohol, even more so if at least one 1,2-alkanediol with in- cluded, more preferably two or more 1,2-alkanediols, each independently with 5 to 12 carbon atoms. Balancing the formulation to allow for both mineral sunscreen pigments and non-min- eral sun protection filters was achieved by combining both alkyl benzyl alcohols, and at least one 1,2-alkanediol. These formulations were surprisingly stable and showed improvements in colour stability and less phase segregation. Combining different sunscreen components was facilitated by addition of both alkyl benzyl alcohols, and at least one 1,2-alkanediol. [0030] The use of a mixture of 4-methyl benzyl alcohol, 1,2-hexanediol and 1,2-octanediol was particularly potent in improving the formulation to allow higher amounts of the sunscreen com- ponents and greater formulation stability. [0031] It follows that the SPF of a sunscreen composition comprising a mineral sunscreen pigment can be enhanced while solubility issues are avoided at the same time. [0032] Particularly preferred non-mineral filters are selected from the group consisting of tria- zines which are advantageously used in compositions additionally comprising one or more 1,2- alkanediols as described in EP 1779839 B2 (BEIERSDORF AG). Preferably, the non-mineral filters are selected from the group consisting of 2,4-bis-{[4-(2-ethyl-hexyloxy)-2-hydroxy]-phe- nyl}-6-(4-methoxyphenyl)-1,3,5-triazin (INCI: Aniso Triazin, tradename: Tinosorb S), dioctyl- butylamidotriazon (INCI: Dioctylbutamidotriazone), 2,4-bis-[5-1(dimethyl-propyl)benzoxazol-2- yl-(4-phenyl)-imino]-6-(2-ethylhexyl)-imino-1,3,5-triazin (tradename: Uvasorb® K2A) and 2,4,6-tribiphenyl-4-yl-1,3,5-triazin. A preferred 1,2-alkanediol for the use in compositions with the aforementioned non-mineral filters comprises 1,2-hexanediol. [0033] Solvents [0034] In another aspect, the sunscreen composition optionally comprises a solvent (d), wherein said solvent is preferably a 1,2-, 1,3- or a 2,3-alkanediol with 2 to 4 carbon atoms. 230086 [0035] Preferred solvents forming optional component (d) encompass glycerol, 1,2-propylene glycol, 1,2-butylene glycol, 1,3-propylene glycol, 1,3-butylene glycol, ethanol, water and mix- tures of two or more of said liquid carrier materials with water. Other preferred solvents, which may be a component of a composition according to the invention are selected from the group consisting of oils such as vegetable oil, neutral oil and mineral oil. Preferably the compositions comprise alkanediols with 2 to 4 carbon atoms, such as ethylene glycol, 1,2-propylene glycol or 1,3-propylene glycol. [0036] The solvent component d) displays a dual function. In one aspect, the solvent is pref- erably selected from the group consisting of 1,2-, 1,3- or 2,3-alkanediols having 2 to 4 carbon atoms. Thus, the alkanediol solvent does not only improve the solubility of other components of the sunscreen composition, but additionally contributes antimicrobial properties. Surpris- ingly, the preservation effect of sunscreen compositions is significantly enhanced if the com- position contains a 1,2-, 1,3- or 2,3-alkanediol with 2 to 4 carbon atoms, preferably 1,3-pro- panediol. [0037] In another aspect, preferred solvents for the use in sunscreen compositions are se- lected from the group consisting of Neo Heliopan 303 (octocrylene), Neo Heliopan HMS (ho- mosalate), Neo Heliopan AP (disodium phenyl dibenzimidazole tetrasulfonate), Neo Heliopan Hydro (phenylbenzimidazole sulfonic acid), Neo Heliopan EHT (ethylhexyl triazone), Neo He- liopan BMT (bis-ethylhexyloxyphenol methoxyphenyl triazine), Neo Heliopan E1000 (isoamyl p-methoxycinnamate), Neo Heliopan MBC (4-methylbenzylidene camphor), Mexoryl 400 (methoxypropylamino cyclohexenylidene ethoxyethylcyanoacetate (BASF)), Triasorb (phe- nylene bis-diphenyltriazine (Pierre Fabre)), HAA 299 (bis-(diethylaminohydroxybenzoyl ben- zoyl) Piperazine / (nano) (BASF)), Uvinul® A Plus (diethylamino hydroxybenzoyl hexyl benzo- ate (BASF)), Tinosorb® M (methylene bis-benzotriazolyl tetramethylbutyl-phenol (nano) (BASF and other suppliers), Uvasorb® HEB (diethylhexyl butamido triazone (3V Sigma and other suppliers) and Tinosorb® A2B (tris-biphenyl triazine (nano) (BASF)). [0038] In another aspect, the solvent may be preferably selected from the aforementioned group consisting of non-mineral sun protection filters. [0039] Again, the solvent component d) displays a dual function in that it does not only improve the solubility of the components of the sunscreen composition but also enhances its SPF. Thus, it follows that the SPF of a sunscreen composition comprising a mineral sunscreen pig- ment can be enhanced using a non-mineral sun protection filter as a solvent d) while the solu- bility of the sunscreen composition is improved at the same time. The above-described sol- vents also support the product stability, this is particularly the case for 1,3-propanediol. [0040] A very effective composition can be achieved when alkyl benzyl alcohols are combined with the solvents mentioned above in particular 1,3-propanediol. Even more preferred is the combination of alkyl benzyl alcohols with the solvents mentioned above, in particular 1,3-pro- panediol, and also alkanediols as described in the following, most preferably 1,2-hexanediol and/or 1,2-octanediol, but also preferably 1,2-heptanediol alone or in a further combination with either or both of 1,2-hexanediol and 1,2-octanediol. These combinations show the best results for both product stability and antimicrobial resistance, especially against Aspergillus brasiliensis. 230086 [0041] Alkanediols [0042] In another aspect, the sunscreen composition comprises at least one alkanediol as additional component (e), preferably at least one 1,2-alkanediol, more preferably two or more 1,2-alkanediols, each independently with 5 to 12 carbon atoms, wherein said 1,2-alkanediol(s) is/are selected from the group consisting of 1,2-pentanediol, 1,2-hexanediol, 1,2-heptanediol, 1,2-octanediol, 1,2-nonanediol, 1,2-decanediol, 1,2-undecanediol and 1,2-dodecanediol. [0043] Preferably, the sunscreen composition comprises an alkanediol or alkanediol mixture, preferably where the alkanediol or alkanediol mixture comprises at least one 1,2-alkanediol. Preferably the alkanediol or alkanediol mixture is selected from the list consisting of 1,2-hex- anediol, 1,2-octanediol and 1,2-decanediol. Most preferred is a mixture of 1,2-hexanediol and 1,2-octanediol, typically in equal amounts, which is obtainable under the trademark SymDiol®68 (SYMRISE AG). [0044] Preferred alkanediols of the sunscreen composition are selected from the group con- sisting of linear 1,2-diols, 2,3-diols or 3,4-diols having five to twenty carbon atoms. Preferably, the alkanediol is selected from the group consisting of 1,2-hexanediol, 1,2-heptanediol, 1,2- octanediol, 1,2-nonanediol, 1,2-decanediol, 1,2-undecanediol and 1,2-dodecanediol, also pref- erably the alkanediol is 2,3-hexanediol and/or 2,3-heptanediol and/or 2,3-octanediol. Further preferably the alkanediol is a combination of 1,2-hexanediol and 2,3-hexanediol, or 1,2-hep- tanediol and 2,3-heptanediol, or 1,2-octanediol and 2,3-octanediol. More preferably, the al- kanediol comprises 1,2-octanediol or 1,2-decanediol, also preferably 1,2-hexanediol, 1,2-oc- tanediol and/or 1,2-decanediol. [0045] The alkanediols have the advantage of improving mixability of the other components, in particular improving the solubility of the mineral sun protection pigments, thus bridging dif- ferent lipophilic/hydrophilic components. At the same time, these components have antimicro- bial functions or also can stabilize formulations and support discoloration prevention. They also support formulation stability. [0046] The alkanediols are preferred in combination with alkyl benzyl alcohols. Combining one alkanediol with an alkyl benzyl alcohol shows good antimicrobial resistance. Combining two alkanediols with an alkyl benzyl alcohol shows even further improved antimicrobial re- sistance. Combinations of 1,2-hexanediol and 1,2-octanediol are effective, but 1,2-heptane- diol can also be combined with alkyl benzyl alcohol alone or in a further combination with ei- ther or both of 1,2-hexanediol and 1,2-octanediol. Thes combinations also achieve high prod- uct stability. [0047] In a further more preferred variant, the above alkanediol is selected from the group consisting of alkanediols having a lower number of carbon atoms of 5 to 8, i.e. pentanediol, hexanediol, heptanediol, octanediol, and any mixture thereof, or is selected from the group consisting of alkanediols having a number of carbon atoms of 6 to 8, i.e. hexanediol, heptane- diol, octanediol, and any mixture thereof, or is selected from the group consisting of alkanediols having a number of carbon atoms of 7 and 8, i.e. heptanediol, octanediol, and any mixture thereof. 230086 [0048] In a still more preferred variant, the alkanediol is selected from the group consisting of alkanediols having a higher number of carbon atoms of 9 to 12, i.e. nonanediol, decanediol, undecanediol, dodecanediol, and any mixture thereof, or is selected from the group consisting of alkanediols having a number of carbon atoms of 9 to 11, i.e. nonanediol, decanediol, un- decanediol, and any mixture thereof, or is selected from the group consisting of alkanediols having a number of carbon atoms of 9 and 10, i.e. nonanediol, decanediol, and any mixture thereof. [0049] In a still more preferred variant, the alkanediol is either pentanediol, hexanediol, hep- tanediol or octanediol, or any mixture thereof. In a still more preferred variant, the alkanediol is either nonanediol, decanediol, undecanediol or dodecanediol, or any mixture thereof. In a most preferred variant, the alkanediol is decanediol. [0050] The term “alkanediol” within the context of the present invention also includes its con- stitutional isomers or position isomers. Constitutional isomers are compounds that have the same molecular formula and different connectivity. Position isomers, a particular form of con- stitutional isomerism, are structural isomers that can be viewed as differing only on the position of a functional group on a parent structure, which in this case, in particular, is the position of the two alcohol functions. [0051] Depending on the number of the carbon atoms of the carbon chain of the alkanediol, there are various position isomers of the alkanediol: (x,x+1) constitutional isomers; (x,x+2) constitutional isomers; (x,x+3) constitutional isomers; etc. and alpha,omega constitutional iso- mers when the alcohol functions are at the terminal ends of the carbon chain, wherein x stands for the number of the carbon atom in the alkanediol chain, to which the OH groups of the alkanediol are chemically bonded. For example: if x is 1, the two OH groups of the alkanediol are chemically bonded to the C1 and C2 carbon atoms in the alkanediol chain; if x is 2, the two OH groups of the alkanediol are chemically bonded to the C2 and C3 carbon atoms in the alkanediol chain, etc. [0052] In the (x,x+1) constitutional isomers, the two OH functional groups are vicinal attached to two different adjacent carbon atoms in the chain. In the (x,x+2) constitutional isomers, the two OH functional groups are attached to two different carbon atoms in the chain where the two carbon atoms are separated by one C atom. In the (x,x+3) constitutional isomers, the two OH functional groups are attached to two different carbon atoms in the chain where the two carbon atoms are separated by two C atoms. In the alpha,omega constitutional isomers, the two functional groups are attached to the first C atom and to the terminal C atom. [0053] In a preferred variant of the sunscreen composition, the alkanediol having a carbon chain of 5 to 12 carbon atoms, is preferably a vicinal (x,x+1) diol, selected from the group consisting of a 1,2-diol, 2,3-diol, 3,4-diol, 4,5-diol, further (x,x+1) diols, and mixtures thereof, preferably an alpha,beta-1,2-constitutional isomer. [0054] Thus, according to a preferred variant of the sunscreen composition, the alkanediol is an (x,x+1) constitutional isomer, wherein x stands for the number of the carbon atom in the alkanediol chain, to which the OH groups of the alkanediol are chemically bonded, in particular 230086 a 1,2-alkanediol, a 2,3-alkanediol, a 3,4-alkanediol, or mixtures thereof, preferably a 1,2-al- kanediol or a 2,3-alkanediol. [0055] In a further preferred variant of the sunscreen composition according to the present invention, the alkanediol having a carbon chain of 5 to 12 carbon atoms, is preferably a non- vicinal (x,x+2) diol, selected from the group consisting of a 1,3-diol, 2,4-diol, 3,5-diol, further (x,x+2) diols, and mixtures thereof, preferably an alpha,gamma-1,3-constitutional isomer. [0056] In a preferred variant of the sunscreen composition, the alkanediol having a carbon chain of 5 to 12 carbon atoms is a non-vicinal (x,x+2) diol, selected from the group consisting of a 1,3-diol, 2,4-diol, 3,5-diol, 4,6-diol, further (x,x+2) diols, and mixtures thereof, preferably an alpha,gamma-1,3-consitutional isomer. [0057] In a further preferred variant of the sunscreen composition the alkanediol having a car- bon chain of 5 to 12 carbon atoms, is preferably a non-vicinal (x,x+3) diol, selected from the group consisting of a 1,4-diol, 2,5-diol, further (x,x+3) diols, and mixtures thereof, preferably an alpha,delta-1,4-constitutional isomer. [0058] In a preferred variant of the sunscreen composition, the alkanediol is preferably an alpha,omega alkanediol, more preferably, 1,7-heptanediol or 1,8-octanediol. [0059] According to the present invention, vicinal (x,x+1) diols are most preferred, such as alpha,beta or beta,gamma or gamma,delta etc. [0060] In a still more preferred variant of the sunscreen composition, the alkanediol is a 1,2- alkanediol, a 2,3-alkanediol, a 3,4-alkanediol, or mixtures thereof, more preferred 2,3-al- kanediol. [0061] In a preferred variant of the sunscreen composition, the alkanediol is selected from the group consisting of: 1,2-pentanediol, 2,3-pentanediol, 3,4-pentanediol, 1,2-hexanediol, 2,3-hexanediol, 3,4-hexanediol, 1,2-heptanediol, 2,3-heptanediol, 3,4-heptanediol, 1,2-octanediol, 2,3-octanediol, 3,4-octanediol, 1,2-nonanediol, 2,3-nonanediol, 3,4-nonanediol, 1,2-decanediol, 2,3-decanediol, 3,4-decanediol, 1,2-undecanediol, 2,3-undecanediol, 3,4-undecanediol, 1,2-dodecanediol, 2,3-dodecanediol, 3,4-dodecanediol, and any mixture thereof. [0062] According to a preferred variant, in the sunscreen composition, the alkanediol is se- lected from the group consisting of 1,2-pentanediol, 2,3-pentanediol, 1,2-hexanediol, 2,3-hex- anediol, 1,2 heptanediol, 2,3 heptanediol, 1,2 octanediol, 2,3 octanediol, 1,2-nonanediol, 2,3- nonanediol, 1,2-decanediol, 2,3-decanediol, 1,2-undecanediol, 2,3-undecanediol, 1,2-dodec- anediol, 2,3-dodecanediol, and any mixture thereof. 230086 [0063] Of the aforesaid linear alkanediols, the following (x,x+1) constitutional isomers are pre- ferred: 1,2-pentanediol, 2,3-pentanediol, 1,2-hexanediol, 2,3-hexanediol, 1,2-heptanediol, 2,3- heptanediol, 2,3-octanediol, 2,3-nonanediol, 2,3-decanediol, 2,3-undecanediol, 2,3-dodecane- diol, or mixtures thereof. Said alkanediols are liquid at a purity above 90 %. [0064] Of the aforesaid liquid alkanediols 1,2-pentanediol, 2,3-pentanediol, 1,2-hexanediol, 2,3-hexanediol, 1,2-heptanediol, 2,3-heptanediol, 2,3-octanediol, 2,3-nonanediol, or mixtures of said liquid alkanediols are particularly preferred. [0065] In a further preferred variant of the sunscreen composition, the alkanediol is selected from the group consisting of: 1,2-pentanediol, 2,3-pentanediol, 1,2-hexanediol, 2,3-hexanediol, 1,2-heptanediol, 2,3-heptanediol, 1,2-octanediol, 2,3-octanediol, 1,2-nonanediol, 2,3-nonanediol, 1,2-decanediol, 2,3-decanediol, 1,2-undecanediol, 2,3-undecanediol, 1,2-dodecanediol, 2,3-dodecanediol, and any mixture thereof. [0066] More preferred, the alkanediol mixture is selected from the group consisting of 1,2 and 2,3 mixtures: 1,2-pentanediol and 2,3-pentanediol, 1,2-hexanediol and 2,3-hexanediol, 1,2-heptanediol and 2,3-heptanediol, 1,2-octanediol and 2,3-octanediol, 1,2-nonanediol and 2,3-nonanediol, 1,2-decanediol and 2,3-decanediol, 1,2-undecanediol and 2,3-undecanediol, 1,2-dodecanediol and 2,3-dodecanediol, and any mixture thereof. [0067] Further preferred in the sunscreen composition the alkanediol mixture is a combination of 1,2-heptanediol and 2,3-heptanediol, or 1,2-decanediol and 2,3-decanediol. [0068] Further preferred in the sunscreen composition, the alkanediol is selected from the group consisting of 1,2-pentanediol, 2,3-pentanediol, and mixtures thereof, or is selected from the group consisting of 1,2-hexanediol, 2,3-hexanediol, and mixtures thereof. However, the 230086 linear alkanediol or the first linear alkanediol can also preferably be selected from the group consisting of 1,2-octanediol, 2,3-octanediol, and mixtures thereof. [0069] Surprisingly it has been found that adding mixtures of at least one 1,2-alkanediol, pref- erably two 1,2-alkanediols, and at least one alkyl benzyl alcohol even in small amounts in- creases preservation of cosmetic compositions, preferably those comprising up to 30 wt.-% of mineral sunscreen pigments, preferably such as for example zinc oxide and protects the com- position also against yellowing and phase separation. The compositions show typically a SPF of 25 to 30. The compositions thus obtained meet the A criteria according to European Phar- macopoeia standard. [0070] Mixtures of 4-methyl benzyl alcohol, 1,2-hexanediol and 1,2-octanediol are particularly preferred and obtainable under the trademark SymTriol® (SYMRISE). [0071] The use of the commercially available liquid mixture of 4-methyl benzyl alcohol, 1,2- hexanediol and 1,2-octanediol also simplifies the formulation of the sunscreen composition since the solid component 4-methyl benzyl alcohol does not need to be dissolved involving an extra step. [0072] Emulsifiers [0073] In a further aspect, the sunscreen composition optionally comprises an emulsifier, pref- erably a non-ionic emulsifier. [0074] Non-ionic or cationic surfactants may be added to the preparations as emulsifiers, in- cluding for example: ^ products of the addition of 2 to 30 mol ethylene oxide and/or 0 to 5 mol propylene oxide onto linear C8-22 fatty alcohols, onto C12-22 fatty acids and onto alkyl phenols containing 8 to 15 car- bon atoms in the alkyl group; ^ C12/18 fatty acid monoesters and diesters of addition products of 1 to 30 mol ethylene oxide onto glycerol; ^ glycerol mono- and diesters and sorbitan mono- and diesters of saturated and unsaturated fatty acids containing 6 to 22 carbon atoms and ethylene oxide addition products thereof; ^ addition products of 15 to 60 mol ethylene oxide onto castor oil and/or hydrogenated castor oil; ^ polyol esters and, in particular, polyglycerol esters such as, for example, polyglycerol poly- ricinoleate, polyglycerol poly-12-hydroxystearate or polyglycerol dimerate isostearate. Mix- tures of compounds from several of these classes are also suitable; ^ addition products of 2 to 15 mol ethylene oxide onto castor oil and/or hydrogenated castor oil; ^ partial esters based on linear, branched, unsaturated or saturated C6/22 fatty acids, ricinoleic acid and 12-hydroxystearic acid and glycerol, polyglycerol, pentaerythritol, dipentaerythritol, sugar alcohols (for example sorbitol), alkyl glucosides (for example methyl glucoside, butyl glucoside, lauryl glucoside) and polyglucosides (for example cellulose); 230086 ^ mono-, di and trialkyl phosphates and mono-, di- and/or tri-PEG-alkyl phosphates and salts thereof; ^ wool wax alcohols; ^ polysiloxane/polyalkyl polyether copolymers and corresponding derivatives; ^ mixed esters of pentaerythritol, fatty acids, citric acid and fatty alcohol and/or mixed esters of C6-22 fatty acids, methyl glucose and polyols, preferably glycerol or polyglycerol, ^ alkyl and/or alkenyloligoglycosides; ^ polyalkylene glycols and ^ glycerol carbonate. [0075] The emulsifiers have the effect that they inhibit phase separation of the final sunscreen compositions. This effect is particularly pronounced for non-ionic emulsifiers which thus signif- icantly improve the stability of sunscreen compositions comprising mineral sunscreen pig- ments in high amounts. [0076] The addition products of ethylene oxide and/or propylene oxide onto fatty alcohols, fatty acids, alkylphenols, glycerol mono- and diesters and sorbitan mono- and diesters of fatty acids or onto castor oil are known commercially available products. They are homologue mixtures of which the average degree of alkoxylation corresponds to the ratio between the quantities of ethylene oxide and/or propylene oxide and substrate with which the addition reaction is carried out. C12/18 fatty acid monoesters and diesters of addition products of ethylene oxide onto glyc- erol are known as lipid layer enhancers for cosmetic formulations. The preferred emulsifiers are described in more detail as follows: [0077] Partial glycerides. Typical examples of suitable partial glycerides are stearic acid monoglyceride, stearic acid diglyceride, hydroxystearic acid monoglyceride, hydroxystearic acid diglyceride, isostearic acid monoglyceride, isostearic acid diglyceride, oleic acid mono- glyceride, oleic acid diglyceride, ricinoleic acid monoglyceride, ricinoleic acid diglyceride, lino- leic acid monoglyceride, linoleic acid diglyceride, linolenic acid monoglyceride, linolenic acid diglyceride, erucic acid monoglyceride, erucic acid diglyceride, tartaric acid monoglyceride, tartaric acid diglyceride, citric acid monoglyceride, citric acid diglyceride, malic acid mono- glyceride, malic acid diglyceride, mixed esters of citric acid and stearic or oleic acid with glyc- erol and technical mixtures thereof which may still contain small quantities of triglyceride from the production process. Addition products of 1 to 30 and preferably 5 to 10 mol ethylene oxide onto the partial glycerides mentioned are also suitable. [0078] Sorbitan esters. Suitable sorbitan esters are sorbitan monoisostearate, sorbitan ses- quiisostearate, sorbitan diisostearate, sorbitan triisostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan dioleate, sorbitan trioleate, sorbitan monoerucate, sorbitan sesquieru- cate, sorbitan dierucate, sorbitan trierucate, sorbitan monoricinoleate, sorbitan sesquiricinole- ate, sorbitan diricinoleate, sorbitan triricinoleate, sorbitan monohydroxystearate, sorbitan ses- quihydroxystearate, sorbitan dihydroxystearate, sorbitan trihydroxystearate, sorbitan monotar- trate, sorbitan sesquitartrate, sorbitan ditartrate, sorbitan tritartrate, sorbitan monocitrate, 230086 sorbitan sesquicitrate, sorbitan dicitrate, sorbitan tricitrate, sorbitan monomaleate, sorbitan sesquimaleate, sorbitan dimaleate, sorbitan trimaleate and technical mixtures thereof. Addi- tion products of 1 to 30 and preferably 5 to 10 mol ethylene oxide onto the sorbitan esters mentioned are also suitable. [0079] Polyglycerol esters. Typical examples of suitable polyglycerol esters are Polyglyceryl- 2 Dipolyhydroxystearate (Dehymuls® PGPH), Polyglycerin-3-Diisostearate (Lameform® TGI), Polyglyceryl-4 Isostearate (Isolan® GI 34), Polyglyceryl-3 Oleate, Diisostearoyl Polyglyceryl-3 Diisostearate (Isolan® PDI), Polyglyceryl-3 Methylglucose Distearate (Tego Care® 450), Poly- glyceryl-3 Beeswax (Cera Bellina®), Polyglyceryl-4 Caprate (Polyglycerol Caprate T2010/90), Polyglyceryl-3 Cetyl Ether (Chimexane® NL), Polyglyceryl-3 Distearate (Cremophor® GS 32) and Polyglyceryl Polyricinoleate (Admul® WOL 1403), Polyglyceryl Dimerate Isostearate and mixtures thereof. Examples of other suitable polyolesters are the mono-, di- and triesters of trimethylol propane or pentaerythritol with lauric acid, cocofatty acid, tallow fatty acid, palmitic acid, stearic acid, oleic acid, behenic acid and the like optionally reacted with 1 to 30 mol ethylene oxide. [0080] Alkyl and/or alkenyl oligoglycosides. Alkyl and/or alkenyl oligoglycosides, their prep- aration and their use are known from the prior art. They are prepared in particular by reacting glucose or oligosaccharides with primary alcohols containing 8 to 18 carbon atoms. With re- gard to the glycoside residue, monoglycosides, in which a cyclic sugar residue is glycosidically bonded to the fatty alcohol, as well as oligomeric glycosides with a degree of oligomerization up to preferably about 8 are suitable. The degree of oligomerization is a statistical mean value based on a homolog distribution customary for such technical products. [0081] Tetraalkyl ammonium salts. Cationically active surfactants comprise the hydrophobic high molecular group required for the surface activity in the cation by dissociation in aqueous solution. A group of important representatives of the cationic surfactants are the tetraalkyl ammonium salts of the general formula: (R1R2R3R4N+) X-. Here R1 stands for C1-C8 alk(en)yl, R2, R3 and R4, independently of each other, for alk(en)yl radicals having 1 to 22 carbon atoms. X is a counter ion, preferably selected from the group of the halides, alkyl sulfates and alkyl carbonates. Cationic surfactants, in which the nitrogen group is substituted with two long acyl groups and two short alk(en)yl groups, are particularly preferred. [0082] Esterquats. A further class of cationic surfactants particularly useful as co-surfactants for the present invention is represented by the so-called esterquats. Esterquats are generally understood to be quaternised fatty acid triethanolamine ester salts. These are known compounds which can be obtained by the relevant methods of preparative organic chemistry. Reference is made in this connection to International patent application WO 91/01295 A1, according to which triethanolamine is partly esterified with fatty acids in the presence of hypophosphorous acid, air is passed through the reaction mixture and the whole is then quaternised with dimethyl sulphate or ethylene oxide. In addition, German patent DE 4308794 C1 describes a process for the production of solid esterquats in which the quaternisation of triethanolamine esters is carried out in the presence of suitable dispersants, preferably fatty alcohols. 230086 [0083] Typical examples of esterquats suitable for use in accordance with the invention are products of which the acyl component derives from monocarboxylic acids corresponding to formula RCOOH in which RCO is an acyl group containing 6 to 10 carbon atoms, and the amine component is triethanolamine (TEA). Examples of such monocarboxylic acids are caproic acid, caprylic acid, capric acid and technical mixtures thereof such as, for example, so- called head-fractionated fatty acid. Esterquats of which the acyl component derives from monocarboxylic acids containing 8 to 10 carbon atoms, are preferably used. Other esterquats are those of which the acyl component derives from dicarboxylic acids like malonic acid, succinic acid, maleic acid, fumaric acid, glutaric acid, sorbic acid, pimelic acid, azelaic acid, sebacic acid and/or dodecanedioic acid, but preferably adipic acid. Overall, esterquats of which the acyl component derives from mixtures of monocarboxylic acids containing 6 to 22 carbon atoms, and adipic acid are preferably used. The molar ratio of mono and dicarboxylic acids in the final esterquat may be in the range from 1:99 to 99:1 and is preferably in the range from 50:50 to 90:10 and more particularly in the range from 70:30 to 80:20. Besides the quaternised fatty acid triethanolamine ester salts, other suitable esterquats are quaternized ester salts of mono-/dicarboxylic acid mixtures with diethanolalkyamines or 1,2-dihydroxypropyl dialkylamines. The esterquats may be obtained both from fatty acids and from the corresponding triglycerides in admixture with the corresponding dicarboxylic acids. One such process, which is intended to be representative of the relevant prior art, is proposed in European patent EP 0750606 B1. To produce the quaternised esters, the mixtures of mono- and dicarboxylic acids and the triethanolamine - based on the available carboxyl functions - may be used in a molar ratio of 1.1:1 to 3:1. With the performance properties of the esterquats in mind, a ratio of 1.2:1 to 2.2:1 and preferably 1.5:1 to 1.9:1 has proved to be particularly advantageous. The preferred esterquats are technical mixtures of mono-, di- and triesters with an average degree of esterification of 1.5 to 1.9. [0084] Emollients [0085] In another aspect, the sunscreen composition optionally comprises an emollient, pref- erably propanediol dicaprylate or cetearyl nonanoate. [0086] Emollients may be used as alternatives to silicones and serve for nourishing the skin and generating a silky skin feel. [0087] Sunscreen compositions [0088] In another preferred embodiment the compositions according to the present invention may comprise or consist of: (a) zinc oxide or nano zinc oxide, (b) 4-methyl benzyl alcohol, (c) optionally at least one non-mineral sun protection filter, (d) optionally 1,2-propanediol or 1,3-propanediol, (e) and optionally 1,2-hexanediol and/or 1,2-octaneidol. [0089] A particular preferred sunscreen composition may comprise or consist of: 230086 (a) about 10 to about 50 wt.-% , preferably about 15 to about 40 wt.-%, more preferably about 20 to about 35 wt.-%, most preferably about 25 to about 30 wt.-% of a mineral sunscreen pigment, preferably zinc oxide or nano zinc oxide, (b) about 0.1 to about 5 wt.-%, preferably about 0.3 to about 3 wt.-%, more preferably about 0.4 to about 2 wt.-%, most preferably about 0.5 to about 1 wt.-% of an alkyl benzyl alcohol, preferably 4-methyl benzyl alcohol, (c) optionally at least one non-mineral sun protection filter, (d) optionally at least one solvent, and (e) optionally about 0.1 to about 5 wt.-%, preferably about 0.3 to about 3 wt.-%, more pref- erably about 0.4 to about 2 wt.-%, most preferably about 0.5 to about 1 wt.-% of at least one 1,2-alkanediol with 5 to 12 carbon atoms. [0090] The preferred sunscreen compositions have the effect of providing high amounts of mineral sunscreen pigments, preferably zinc oxide, while having an improved formulability at the same time. In addition, the preferred sunscreen compositions have antimicrobial properties and are stable against discoloration and phase separation. [0091] COSMETIC COMPOSITIONS [0092] In another aspect, the aforementioned sunscreen compositions may be added to cos- metic bases to form cosmetic compositions. The amounts of compounds specified in the fol- lowing embodiments refer to the final cosmetic composition. [0093] Another aspect of the present invention concerns a cosmetic composition comprising: (i) a cosmetic base (ii) a sunscreen composition as described above, wherein the at least one mineral sunscreen pigment is present in an amount of from 1 to 35 wt.-%, preferably in an amount of from 5 to 30 wt.-%, more preferably in an amount of from 10 to 25 wt.-%, most preferably in an amount of from 15 to 22 wt.-%, wherein the at least one alkyl benzyl alcohol is present in an amount of from 0.1 to 5 wt.-%, preferably in an amount of from 0.2 to 4 wt.-%, more preferably in an amount of from 0.3 to 3 wt.-%, most preferably in an amount of from 0.5 to 1 wt.-%, and wherein the at least one alkanediol (e) is present in an amount of from 0.1 to 5 wt.-%, prefer- ably in an amount of from 0.2 to 4 wt.-%, more preferably in an amount of from 0.3 to 3 wt.-%, most preferably in an amount of from 0.5 to 1 wt.-%, all wt.-%values based on the weight of the overall cosmetic composition. [0094] Another object of the present invention refers to a method for obtaining a cosmetic composition comprising or consisting of the following steps: (i) providing a cosmetic base; 230086 (ii) providing a sunscreen composition as described above; (iii) adding component (ii) to component (i), or alternatively adding individual parts of com- ponent (ii) individually, so that about 1 to about 30 wt.-percent of the sunscreen composition (ii) are present in the final cosmetic composition. [0095] The cosmetic composition may be for example a skin care, a personal care, a hair care or a sun care composition. The composition may represent for example a cosmetic cream, lotion, spray, emulsion, ointment, gel or mousse and the like. [0096] The preparations according to the invention may contain antidandruff agents, irritation- preventing agents, irritation-inhibiting agents, antioxidants, adstringents, perspiration-inhibiting agents, antiseptic agents, antistatics, binders, buffers, carrier materials, chelating agents, cell stimulants, cleansing agents, care agents, deodorizing agents, antiperspirants, softeners, emulsifiers, enzymes, essential oils, fibres, film-forming agents, fixatives, foam-forming agents, foam stabilizers, substances for preventing foaming, foam boosters, gelling agents, gel-form- ing agents, hair care agents, hair-setting agents, hair-straightening agents, moisture-donating agents, moisturizing substances, moisture-retaining substances, bleaching agents, strength- ening agents, stain-removing agents, optically brightening agents, impregnating agents, dirt- repellent agents, friction-reducing agents, lubricants, moisturizing creams, ointments, opacify- ing agents, plasticizing agents, covering agents, polish, gloss agents, polymers, powders, pro- teins, re-oiling agents, abrading agents, silicones, hair promotion agents, cooling agents, skin- cooling agents, warming agents, skin-warming agents, stabilizers, UV-absorbing agents, UV filters, detergents, thickeners, vitamins, oils, waxes, fats, phospholipids, saturated fatty acids, mono- or polyunsaturated fatty acids, α-hydroxy acids, polyhydroxyfatty acids, liquefiers, dye- stuffs, colour-protecting agents, pigments, odoriferous substances, polyols, surfactants, elec- trolytes, organic solvents or silicone derivatives and the like as additional auxiliaries and addi- tives. [0097] Surfactants [0098] Preferred auxiliaries and additives are anionic and/or amphoteric or zwitterionic surfac- tants. Non-ionic and cationic surfactants can be also present in the composition. Suitable examples are mentioned along with the above paragraph dealing with emulsifiers. [0099] Anionic and zwitterionic surfactants [0100] Preferred examples for anionic and zwitterionic surfactants are one or more com- pounds selected from the group consisting of sodium laureth sulfate, cocamidopropyl betaine, sodium cocoamphoacetate, cocoglucoside and ammonium lauryl sulfosuccinate. [0101] The percentage content of surfactants in the preparations may be from 0.1 to 10 wt.-% and is preferably from 0.5 to 5 wt.-%, based on the preparation. [0102] Non-ionic surfactants [0103] Alkohol alkoxylates. The added non-ionic surfactants are preferably alkoxylated and/or propoxylated, particularly primary alcohols having preferably 8 to 18 carbon atoms and 230086 an average of 1 to 12 mol ethylene oxide (EO) and/or 1 to 10 mol propylene oxide (PO) per mol alcohol. C8-C16-Alcohol alkoxylates, advantageously ethoxylated and/or propoxylated C10- C15-alcohol alkoxylates, particularly C12-C14 alcohol alkoxylates, with an ethoxylation degree between 2 and 10, preferably between 3 and 8, and/or a propoxylation degree between 1 and 6, preferably between 1.5 and 5, are particularly preferred. The cited degrees of ethoxylation and propoxylation constitute statistical average values that can be a whole or a fractional number for a specific product. Preferred alcohol ethoxylates and propoxylates have a narrowed homolog distribution (narrow range ethoxylates/propoxylates, NRE/NRP). In addition to these non-ionic surfactants, fatty alcohols with more than 12 EO can also be used. Examples of these are (tallow) fatty alcohols with 14 EO, 16 EO, 20 EO, 25 EO, 30 EO or 40 EO. [0104] Alkylglycosides (APG®). Furthermore, as additional non-ionic surfactants, alkyl glycosides that satisfy the general Formula RO(G)x, can be added, e.g., as compounds, particularly with anionic surfactants, in which R means a primary linear or methyl-branched, particularly 2-methyl-branched, aliphatic group containing 8 to 22, preferably 12 to 18 carbon atoms and G stands for a glycose unit containing 5 or 6 carbon atoms, preferably for glucose. The degree of oligomerization x, which defines the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10, preferably between 1.1 and 1.4. [0105] Fatty acid ester alkoxylates. Another class of preferred non-ionic surfactants, which are used either as the sole non-ionic surfactant or in combination with other non-ionic surfactants, in particular, together with alkoxylated fatty alcohols and/or alkyl glycosides, are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters preferably containing 1 to 4 carbon atoms in the alkyl chain, more particularly the fatty acid methyl esters which are described, for example, in Japanese Patent Application JP-A- 58/217598 or which are preferably produced by the process described in International Patent Application WO-A-90/13533. Methyl esters of C12-C18 fatty acids containing an average of 3 to 15 EO, particularly containing an average of 5 to 12 EO, are particularly preferred. [0106] Amine oxides. Non-ionic surfactants of the amine oxide type, for example, N-coco alkyl-N,N-dimethylamine oxide and N-tallow alkyl-N,N-dihydroxyethylamine oxide, and the fatty acid alkanolamides may also be suitable. The quantity in which these non-ionic surfactants are used is preferably no more than the quantity in which the ethoxylated fatty alcohols are used and, particularly no more than half that quantity. [0107] Gemini surfactants. The so-called gemini surfactants can be considered as further surfactants. Generally speaking, such compounds are understood to mean compounds that have two hydrophilic groups and two hydrophobic groups per molecule. As a rule, these groups are separated from one another by a "spacer". The spacer is usually a hydrocarbon chain that is intended to be long enough such that the hydrophilic groups are a sufficient distance apart to be able to act independently of one another. These types of surfactants are generally characterized by an unusually low critical micelle concentration and the ability to strongly reduce the surface tension of water. In exceptional cases, however, not only dimeric but also trimeric surfactants are meant by the term gemini surfactants. Suitable gemini surfactants are, for example, sulfated hydroxy mixed ethers according to German Patent Application DE 4321022 A1 or dimer alcohol bis- and trimer alcohol tris sulfates and ether sulfates according 230086 to International Patent Application WO 96/23768 A1. Blocked end group dimeric and trimeric mixed ethers according to German Patent Application DE 19513391 A1 are especially characterized by their bifunctionality and multifunctionality. Gemini polyhydroxyfatty acid amides or polyhydroxyfatty acid amides, such as those described in International Patent Applications WO 95/19953 A1, WO 95/19954 A1 and WO 95/19955 A1 can also be used. [0108] Cationic surfactants [0109] Tetraalkyl ammonium salts. Cationically active surfactants comprise the hydrophobic high molecular group required for the surface activity in the cation by dissociation in aqueous solution. A group of important representatives of the cationic surfactants are the tetraalkyl ammonium salts of the general formula: (R1R2R3R4N+) X-. Here R1 stands for C1-C8 alk(en)yl, R2, R3 and R4, independently of each other, for alk(en)yl radicals having 1 to 22 carbon atoms. X is a counter ion, preferably selected from the group of the halides, alkyl sulfates and alkyl carbonates. Cationic surfactants, in which the nitrogen group is substituted with two long acyl groups and two short alk(en)yl groups, are particularly preferred. [0110] Esterquats. A further class of cationic surfactants particularly useful as co-surfactants for the present invention is represented by the so-called esterquats. Esterquats are generally understood to be quaternised fatty acid triethanolamine ester salts. These are known compounds which can be obtained by the relevant methods of preparative organic chemistry. Reference is made in this connection to International patent application WO 91/01295 A1, according to which triethanolamine is partly esterified with fatty acids in the presence of hypophosphorous acid, air is passed through the reaction mixture and the whole is then quaternised with dimethyl sulphate or ethylene oxide. In addition, German patent DE 4308794 C1 describes a process for the production of solid esterquats in which the quaternisation of triethanolamine esters is carried out in the presence of suitable dispersants, preferably fatty alcohols. [0111] Typical examples of esterquats suitable for use in accordance with the invention are products of which the acyl component derives from monocarboxylic acids corresponding to formula RCOOH in which RCO is an acyl group containing 6 to 10 carbon atoms, and the amine component is triethanolamine (TEA). Examples of such monocarboxylic acids are caproic acid, caprylic acid, capric acid and technical mixtures thereof such as, for example, so- called head-fractionated fatty acid. Esterquats of which the acyl component derives from monocarboxylic acids containing 8 to 10 carbon atoms, are preferably used. Other esterquats are those of which the acyl component derives from dicarboxylic acids like malonic acid, succinic acid, maleic acid, fumaric acid, glutaric acid, sorbic acid, pimelic acid, azelaic acid, sebacic acid and/or dodecanedioic acid, but preferably adipic acid. Overall, esterquats of which the acyl component derives from mixtures of monocarboxylic acids containing 6 to 22 carbon atoms, and adipic acid are preferably used. The molar ratio of mono and dicarboxylic acids in the final esterquat may be in the range from 1:99 to 99:1 and is preferably in the range from 50:50 to 90:10 and more particularly in the range from 70:30 to 80:20. Besides the quaternised fatty acid triethanolamine ester salts, other suitable esterquats are quaternized ester salts of mono-/dicarboxylic acid mixtures with diethanolalkyamines or 1,2-dihydroxypropyl dialkylamines. The esterquats may be obtained both from fatty acids and from the 230086 corresponding triglycerides in admixture with the corresponding dicarboxylic acids. One such process, which is intended to be representative of the relevant prior art, is proposed in European patent EP 0750606 B1. To produce the quaternised esters, the mixtures of mono- and dicarboxylic acids and the triethanolamine - based on the available carboxyl functions - may be used in a molar ratio of 1.1:1 to 3:1. With the performance properties of the esterquats in mind, a ratio of 1.2:1 to 2.2:1 and preferably 1.5:1 to 1.9:1 has proved to be particularly advantageous. The preferred esterquats are technical mixtures of mono-, di- and triesters with an average degree of esterification of 1.5 to 1.9. [0112] Amphoteric surfactants [0113] Betaines. Amphoteric or ampholytic surfactants possess a plurality of functional groups that can ionize in aqueous solution and thereby-depending on the conditions of the medium- lend anionic or cationic character to the compounds (see DIN 53900, July 1972). Close to the isoelectric point (around pH 4), the amphoteric surfactants form inner salts, thus becoming poorly soluble or insoluble in water. Amphoteric surfactants are subdivided into ampholytes and betaines, the latter existing as zwitterions in solution. Ampholytes are amphoteric electrolytes, i.e. compounds that possess both acidic as well as basic hydrophilic groups and therefore behave as acids or as bases depending on the conditions. Especially betaines are known surfactants which are mainly produced by carboxyalkylation, preferably carboxymethylation, of amine compounds. The starting materials are preferably condensed with halocarboxylic acids or salts thereof, more particularly sodium chloroacetate, one mole of salt being formed per mole of betaine. The addition of unsaturated carboxylic acids, such as acrylic acid for example, is also possible. Examples of suitable betaines are the carboxy alkylation products of secondary and, in particular, tertiary amines which correspond to formula R1R2R3N-(CH2)qCOOX where R1 is a an alkyl radical having 6 to 22 carbon atoms, R2 is hydrogen or an alkyl group containing 1 to 4 carbon atoms, R3 is an alkyl group containing 1 to 4 carbon atoms, q is a number of 1 to 6 and X is an alkali and/or alkaline earth metal or ammonium. Typical examples are the carboxymethylation products of hexylmethylamine, hexyldimethylamine, octyldimethylamine, decyldimethylamine, C12/14-cocoalkyldimethylamine, myristyldimethylamine, cetyldimethylamine, stearyldimethylamine, stearylethylmethylamine, oleyldimethylamine, C16/18-tallowalkyldimethylamine and their technical mixtures, and particularly dodecyl methylamine, dodecyl dimethylamine, dodecyl ethylmethylamine and technical mixtures thereof. [0114] Alkylamido betaines. Other suitable betaines are the carboxyalkylation products of amidoamines corresponding to formula R1CO(R3)(R4)-NH-(CH2)p-N-(CH2)qCOOX in which R1CO is an aliphatic acyl radical having 6 to 22 carbon atoms and 0 or 1 to 3 double bonds, R2 is hydrogen or an alkyl radical having 1 to 4 carbon atoms, R3 is an alkyl radical having 1 to 4 carbon atoms, p is a number from 1 to 6, q is a number from 1 to 3 and X is an alkali and/or alkaline earth metal or ammonium. Typical examples are reaction products of fatty acids having 6 to 22 carbon atoms, like for example caproic acid, caprylic acid, caprinic acid, lauric acid, myristic acid, palmitic acid, palmoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linolic acid linoleic acid, elaeostearic acid, arachidonic acid, gadoleic acid, behenic acid, erucic acid and their technical mixtures with N,N-dimethylaminoethylamine, 230086 N,N-dimethylaminopropylamine, N,N-diethylaminoethylamine und N,N-diethylami- nopropylamine, which are condensed with sodium chloroacetate. The commercially available products include Dehyton® K and Dehyton® PK (Cognis Deutschland GmbH & Co., KG) as well as Tego®Betaine (Goldschmidt). [0115] Imidazolines. Other suitable starting materials for the betaines to be used for the purposes of the invention are imidazolines. These substances are also known and may be obtained, for example, by cyclizing condensation of 1 or 2 moles of C6-C22 fatty acids with polyfunctional amines, such as for example aminoethyl ethanolamine (AEEA) or diethylenetriamine. The corresponding carboxyalkylation products are mixtures of different open-chain betaines. Typical examples are condensation products of the above- mentioned fatty acids with AEEA, preferably imidazolines based on lauric acid, which are subsequently betainised with sodium chloroacetate. The commercially available products include Dehyton® G (Cognis Deutschland GmbH & Co., KG) [0116] Oil bodies [0117] Suitable oil bodies, which form constituents of the O/W emulsions, are, for example, Guerbet alcohols based on fatty alcohols having 6 to 18, preferably 8 to 10, carbon atoms, esters of linear C6-C22-fatty acids with linear or branched C6-C22-fatty alcohols or esters of branched C6-C 13-carboxylic acids with linear or branched C6-C 22-fatty alcohols, such as, for example, myristyl myristate, myristyl palmitate, myristyl stearate, myristyl isostearate, myristyl oleate, myristyl behenate, myristyl erucate, cetyl myristate, cetyl palmitate, cetyl stearate, cetyl isostearate, cetyl oleate, cetyl behenate, cetyl erucate, stearyl myristate, stearyl palmitate, stearyl stearate, stearyl isostearate, stearyl oleate, stearyl behenate, stearyl erucate, isostearyl myristate, isostearyl palmitate, isostearyl stearate, isostearyl isostearate, isostearyl oleate, isostearyl behenate, isostearyl oleate, oleyl myristate, oleyl palmitate, oleyl stearate, oleyl isos- tearate, oleyl oleate, oleyl behenate, oleyl erucate, behenyl myristate, behenyl palmitate, be- henyl stearate, behenyl isostearate, behenyl oleate, behenyl behenate, behenyl erucate, erucyl myristate, erucyl palmitate, erucyl stearate, erucyl isostearate, erucyl oleate, erucyl be- henate and erucyl erucate. Also suitable are esters of linear C6-C22-fatty acids with branched alcohols, in particular 2-ethylhexanol, esters of C18-C38- alkylhydroxy carboxylic acids with lin- ear or branched C6-C 22-fatty alcohols, in particular Dioctyl Malate, esters of linear and/or branched fatty acids with polyhydric alcohols (such as, for example, propylene glycol, dimerdiol or trimertriol) and/or Guerbet alcohols, triglycerides based on C6 -C10-fatty acids, liquid mono- /di-/triglyceride mixtures based on C6-C18-fatty acids, esters of C6- C22-fatty alcohols and/or Guerbet alcohols with aromatic carboxylic acids, in particular benzoic acid, esters of C2- C12- dicarboxylic acids with linear or branched alcohols having 1 to 22 carbon atoms or polyols having 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, vegetable oils, branched primary alcohols, substituted cyclohexanes, linear and branched C6-C22-fatty alcohol carbonates, such as, for example, Dicaprylyl Carbonate (Cetiol® CC), Guerbet carbonates, based on fatty alco- hols having 6 to 18, preferably 8 to 10, carbon atoms, esters of benzoic acid with linear and/or branched C6-C22-alcohols (e.g. Finsolv® TN), linear or branched, symmetrical or asymmetrical dialkyl ethers having 6 to 22 carbon atoms per alkyl group, such as, for example, dicaprylyl ether (Cetiol® OE), ring-opening products of epoxidized fatty acid esters with polyols, silicone 230086 oils (cyclomethicones, silicone methicone grades, etc.) and/or aliphatic or naphthenic hydro- carbons, such as, for example, squalane, squalene or dialkylcyclohexanes. [0118] Superfatting agents and consistency factors [0119] Superfatting agents may be selected from such substances as, for example, lanolin and lecithin and also polyethoxylated or acylated lanolin and lecithin derivatives, polyol fatty acid esters, monoglycerides and fatty acid alkanolamides, the fatty acid alkanolamides also serving as foam stabilizers. [0120] The consistency factors mainly used are fatty alcohols or hydroxyfatty alcohols con- taining 12 to 22 and preferably 16 to 18 carbon atoms and also partial glycerides, fatty acids or hydroxyfatty acids. A combination of these substances with alkyl oligoglucosides and/or fatty acid N-methyl glucamides of the same chain length and/or polyglycerol poly-12-hydroxys- tearates is preferably used. [0121] Thickening agents and rheology additives [0122] Suitable thickeners are polymeric thickeners, such as Aerosil® types (hydrophilic sili- cas), polysaccharides, more especially xanthan gum, guar-guar, agar-agar, alginates and ty- loses, carboxymethyl cellulose and hydroxyethyl cellulose, also relatively high molecular weight polyethylene glycol monoesters and diesters of fatty acids, polyacrylates (for example Carbopols® [Goodrich] or Synthalens® [Sigma]), polyacrylamides, polyvinyl alcohol and poly- vinyl pyrrolidone, surfactants such as, for example, ethoxylated fatty acid glycerides, esters of fatty acids with polyols, for example pentaerythritol or trimethylol propane, narrow-range fatty alcohol ethoxylates and electrolytes, such as sodium chloride and ammonium chloride. [0123] Film formers [0124] Suitable film formers encompass the following species: Product INCI Declaration Oleocraft LP 20 PA (MV) Polyamide-8 Oleocraft MP 30 PA (MV) Polyamide-3 Trimethylpentanediol / Adipic Acid / Glycerin WetFilm Crosspolymer CosmoSurf CE 100 Octyldodecyl Citrate Crosspolymer TegoCare 450 Polyglyceryl-3 Methyl Glucose Distearate Performa V6112 C28-52 Olefin/Undecylenic Acid Copolymer Floraester Jojoba K100 Hydrolyzed Jojoba esters, Jojoba Esters, Aqua KP545 Cyclopentasiloxane Acrylates/Dimethicone copolymer Volarest Acrylates/Beheneth-25 Methacylate Copolymer Dermacryl E Polymer Styrene/Acrylates Copolymer Baycusan C1001 Polyurethane Hybridur 875 Polymer Polyurethane-2 and Polymethyl Methacrylate Dermacryl 2.0 Polymer Acrylates/Octylacrylamide Copolymer SymEffekt Sun Beeswax (Cera Alba) (and) Sodium Stearoyl Lactylate Pullulan Pullulan Xanthan Gum Xanthan Gum Microcrystalline cellulose (and) Sphingomonas ferment ex- PemuPur™ START Polymer tract (and) Cellulose gum SOLAGUM™ AX Acacia Senegal Gum & Xanthan Gum Natpure Cellgum Plus Microcrystalline Cellulose (and) Cellulose Gum AMISOFT® HS-11P Sodium Stearoyl Glutamate Hydrogenated Polycyclopentadiene (and) Caprylic/Capric Koboguard® 5400 CCT Triglyceride Glyceryl Hydrogenated Rosinate (And) Caprylic/Capric Tri- KOBOGUARD® NATURAL 2063-CCT glyceride (And) Tocopherol LaraCare® A 200 Galactoarabinan Wacker BELSIL® CDM 3526 VP C26-28 Alkyl Dimethicone Silsoft 034 Caprylyl Methicone Dowsil 2503 Cosmetic Wax Stearyl Dimethicone (and) Octadecene Antaron™ V 216 VP/Hexadecene Copolymer Antaron™ WP-660 Triacontanyl PVP LexFilm™ Sun Natural MB Capryloyl Glycerin/Sebacic Acid Copolymer Tego SP 13 Sun Up Poly C10-30 Alkyl Acrylate Sunspheres™ BIO SPF Booster Microcrystalline Cellulose [0125] Polymers [0126] Suitable cationic polymers are, for example, cationic cellulose derivatives such as, for example, the quaternized hydroxyethyl cellulose obtainable from Amerchol under the name of Polymer JR 400®, cationic starch, copolymers of diallyl ammonium salts and acrylamides, quaternized vinyl pyrrolidone/vinyl imidazole polymers such as, for example, Luviquat® (BASF), condensation products of polyglycols and amines, quaternized collagen polypeptides such as, for example, Lauryldimonium Hydroxypropyl Hydrolyzed Collagen (Lamequat® L, BASF), quaternized wheat polypeptides, polyethyleneimine, cationic silicone polymers such as, for example, amodimethicone, copolymers of adipic acid and dimethylaminohydroxypropyl diethylenetriamine (Cartaretine®, Sandoz), copolymers of acrylic acid with dimethyl diallyl am- monium chloride (Merquat® 550, Lubrizol), polyaminopolyamides and crosslinked water- soluble polymers thereof, cationic chitin derivatives such as, for example, quaternized chi- tosan, optionally in microcrystalline distribution, condensation products of dihaloalkyls, for ex- ample dibromobutane, with bis-dialkylamines, for example bis-dimethylamino-1,3-propane, cationic guar gum such as, for example, Jaguar®CBS, Jaguar®C-17, Jaguar®C-16 of Celanese, quaternized ammonium salt polymers such as, for example, Mirapol® A-15, Mirapol® AD-1, Mirapol® AZ-1 of Miranol and the various polyquaternium types (for example 6, 7, 32 or 37) which can be found in the market under the tradenames Rheocare® CC or Ultragel® 300. [0127] Suitable anionic, zwitterionic, amphoteric and nonionic polymers are, for example, vinyl acetate/crotonic acid copolymers, vinyl pyrrolidone/vinyl acrylate copolymers, vinyl acetate/bu- tyl maleate/isobornyl acrylate copolymers, methyl vinylether/maleic anhydride copolymers and esters thereof, uncrosslinked and polyol-crosslinked polyacrylic acids, acrylamidopropyl trime- thylammonium chloride/acrylate copolymers, octylacrylamide/methyl methacrylate/tert.-butyl- aminoethyl methacrylate/2-hydroxypropyl methacrylate copolymers, polyvinyl pyrrolidone, vi- nyl pyrrolidone/vinyl acetate copolymers, vinyl pyrrolidone/dimethylaminoethyl methacry- late/vinyl caprolactam terpolymers and optionally derivatized cellulose ethers and silicones. [0128] Pearlizing waxes [0129] Suitable pearlising waxes are, for example, alkylene glycol esters, especially ethylene glycol distearate; fatty acid alkanolamides, especially cocofatty acid diethanolamide; partial glycerides, especially stearic acid monoglyceride; esters of polybasic, optionally hydroxysub- stituted carboxylic acids with fatty alcohols containing 6 to 22 carbon atoms, especially long- chain esters of tartaric acid; fatty compounds, such as for example fatty alcohols, fatty ketones, fatty aldehydes, fatty ethers and fatty carbonates which contain in all at least 24 carbon atoms, especially laurone and distearylether; fatty acids, such as stearic acid, hydroxystearic acid or behenic acid, ring opening products of olefin epoxides containing 12 to 22 carbon atoms with fatty alcohols containing 12 to 22 carbon atoms and/or polyols containing 2 to 15 carbon atoms and 2 to 10 hydroxyl groups and mixtures thereof. [0130] Silicones [0131] Preferred silicones to be contained in the mixture according to the inventions are Di- methicone, Cyclomethicone, Phenyl Trimethicone, Cyclohexasiloxane and Cyclopentasilox- ane. A detailed overview of suitable volatile silicones can be found in Todd et al. in Cosm. Toil.91, 27 (1976). [0132] Waxes and stabilizers [0133] Besides natural oils used, waxes may also be present in the preparations, more espe- cially natural waxes such as, for example, candelilla wax, carnauba wax, Japan wax, espar- tograss wax, cork wax, guaruma wax, rice oil wax, sugar cane wax, ouricury wax, montan wax, beeswax, shellac wax, spermaceti, lanolin (wool wax), uropygial fat, ceresine, ozocerite (earth wax), petrolatum, paraffin waxes and microwaxes; chemically modified waxes (hard waxes) such as, for example, montan ester waxes, sasol waxes, hydrogenated jojoba waxes and syn- thetic waxes such as, for example, polyalkylene waxes and polyethylene glycol waxes. 230086 [0134] Metal salts of fatty acids such as, for example, magnesium, aluminium and/or zinc stea- rate or ricinoleate may be used as stabilizers. [0135] Primary UV sun protection filters [0136] The compositions may contain other UV sun protection filters than present in the sun- screen compositions as escribed above. These filters can be chosen from the same group as disclosed as component (c). [0137] Secondary UV sun protection filters [0138] Besides the groups of primary sun protection factors mentioned above, secondary UV sun protection factors of the antioxidant type may also be used. Secondary sun protection factors of the antioxidant type interrupt the photochemical reaction chain which is initiated when UV rays penetrate into the skin. Typical examples are amino acids (for example glycine, histidine, tyrosine, tryptophane) and derivatives thereof, imidazoles (for example urocanic acid) and derivatives thereof, peptides, such as D,L-carnosine, D-carnosine, L-carnosine and deriv- atives thereof (for example anserine), carotinoids, carotenes (for example alpha-carotene, beta-carotene, lycopene) and derivatives thereof, chlorogenic acid and derivatives thereof, liponic acid and derivatives thereof (for example dihydroliponic acid), aurothioglucose, propylthiouracil and other thiols (for example thioredoxine, glutathione, cysteine, cystine, cystamine and glycosyl, N-acetyl, methyl, ethyl, propyl, amyl, butyl and lauryl, palmitoyl, oleyl, alpha-linoleyl, cholesteryl and glyceryl esters thereof) and their salts, dilaurylthiodipropionate, distearylthiodipropionate, thiodipropionic acid and derivatives thereof (esters, ethers, peptides, lipids, nucleotides, nucleosides and salts) and sulfoximine compounds (for example butionine sulfoximines, homocysteine sulfoximine, butionine sulfones, penta-, hexa- and hepta-thionine sulfoximine) in very small compatible dosages, also (metal) chelators (for example alpha-hy- droxyfatty acids, palmitic acid, phytic acid, lactoferrine), alpha-hydroxy acids (for example citric acid, lactic acid, malic acid), humic acid, bile acid, bile extracts, bilirubin, biliverdin, EDTA, EGTA and derivatives thereof, unsaturated fatty acids and derivatives thereof (for example linoleic acid, oleic acid), folic acid and derivatives thereof, ubiquinone and ubiquinol and deriv- atives thereof, vitamin C and derivatives thereof (for example ascorbyl palmitate, Mg ascorbyl phosphate, ascorbyl acetate), tocopherols and derivatives (for example vitamin E acetate), vitamin A and derivatives (vitamin A palmitate) and coniferyl benzoate of benzoin resin, rutinic acid and derivatives thereof, glycosyl rutin, ferulic acid, furfurylidene glucitol, carnosine, butyl hydroxytoluene, butyl hydroxyanisole, nordihydroguaiac resin acid, nordihydroguaiaretic acid, trihydroxybutyrophenone, uric acid and derivatives thereof, mannose and derivatives thereof, superoxide dismutase, titanium dioxide (for example dispersions in ethanol), zinc and deriva- tives thereof (for example ZnO, ZnSO4), selenium and derivatives thereof (for example sele- nium methionine), stilbenes and derivatives thereof (for example stilbene oxide, trans-stilbene oxide) and derivatives of these active substances suitable for the purposes of the invention (salts, esters, ethers, sugars, nucleotides, nucleosides, peptides and lipids). [0139] Advantageous inorganic secondary light protection pigments are finely dispersed metal oxides and metal salts which are also mentioned in WO 2005123101 A1. The total quantity of inorganic pigments, in particular hydrophobic inorganic micro-pigments in the finished cos- metic preparation according to the present invention is advantageously from 0.1 to 30% by 230086 weight, preferably 0.5 to 10.0% by weight, in each case based on the total weight of the prep- aration. [0140] Also preferred are particulate UV filters or inorganic pigments, which can optionally be hydrophobed, such as the oxides of titanium (TiO2), zinc (ZnO), iron (Fe2O3), zirconium (ZrO2), silicon (SiO2), manganese (e.g. MnO), aluminium (Al2O3), cerium (e.g. Ce2O3) and/or mixtures thereof. [0141] Biogenic agents and antioxidants [0142] Biogenic active substances include, for example, tocopherol, tocopherol acetate, to- copherol palmitate, ascorbic acid, (deoxy)ribonucleic acid and its fragmentation products, β- glucans, retinol, bisabolol, allantoin, phytantriol, panthenol, AHA acids, amino acids, ceramides, pseudoceramides, essential oils, plant extracts, such as prunus extract, bam- baranus extract and vitamin complexes. [0143] Antioxidants interrupt the photochemical reaction chain which is triggered when UV radiation penetrates the skin. Typical examples are amino acids (e.g. glycine, histidine, tyro- sine, tryptophan) and their derivatives, imidazoles (e.g. urocanic acid) and their derivatives, peptides like D,L-carnosine, D-carnosine, L-carnosine and their derivatives (e.g. anserine), carotenoids, carotenes (e.g. -carotene, lycopene) and their derivates, chlorogenic acid and its derivatives, lipoic acid and its derivatives (e.g. dihydrolic acid), aurothioglucose, propylthioura- cil and other thiols (e.g. thioredoxin, glutathione, cysteine, cystine, cystamin and their glycosyl, N-acetyl, methyl, ethyl, propyl, amyl, butyl and lauryl, palmitoyl, oleyl, linoleyl, cholesteryl and glyceryl esters) and their salts dilaurylthiodipropionate, ditearylthiodipropionate, thiodipropionic acid and its derivatives (esters, ethers, peptides, lipids, nucleotides, nucleosides and salts) as well as sulfoximine compounds (e.g. (e.g. buthionine sulfoximines, homocysteine sulfoximines, butionine sulfones, penta-, hexa-, heptathionine sulfoximines) in very low tolerated dosages (e.g. pmol to mol/kg), furthermore (metal) chelators (e.g. hydroxy fatty acids, palmitic acid, phytinic acid, lactoferrin), hydroxy acids (e.g. (e.g. citric acid, lactic acid, malic acid), humic acid, gallic acid, bile extracts, bilirubin, biliverdin, EDTA, EGTA and their derivatives, unsatu- rated fatty acids and their derivatives (e.g. linolenic acid, linoleic acid, oleic acid), folic acid and its derivatives, ubiquinone and ubiquinol and their derivatives, vitamin C and its derivatives (e.g. ascorbyl palmitate, Mg-ascorbyl phosphate, ascorbylacetate), tocopherols and deriva- tives (e.g. vitamin E acetate), vitamin A and derivates (vitamin A palmitate) as well as conifer aryl benzoate of benzoic resin, rutinic acid and its derivatives, glycosylrutin, ferulic acid, furfu- rylidene glucitol, carnosine, butyl hydroxytoluene, butylhydroxyanisole, nordihydroguaiac resin acid, nordihydroguajaretic acid, trihydroxybutyrophenone, uric acid and its derivatives, man- nose and its derivatives, superoxide dismutase, zinc and its derivatives (e.g. e.g. ZnO, ZnSO4) selenium and its derivatives (e.g. selenium-methionine), stilbenes and their derivatives (e.g. styrene oxide, trans-stilbene oxide) and the derivatives suitable for the invention (salts, esters, ethers, sugars, nucleotides, nucleosides, peptides and lipids) of these named active sub- stances. [0144] Actives modulating hair pigmentation 230086 [0145] Preferred active ingredients for hair lightening are selected from the group consisting of: kojic acid (5-hydroxy-2-hydroxymethyl-4-pyranone), kojic acid derivatives, preferably kojic acid dipalmitate, arbutin, ascorbic acid, ascorbic acid derivatives, preferably magnesium ascor- byl phosphate, hydroquinone, hydroquinone derivatives, resorcinol, resorcinol derivatives, preferably 4-alkylresorcinols and 4-(1-phenylethyl)1,3-dihydroxybenzene (phenylethyl resor- cinol), cyclohexylcarbamates (preferably one or more cyclohexyl carbamates disclosed in WO 2010/122178 and WO 2010/097480), sulfur-containing molecules, preferably glutathione or cysteine, alpha-hydroxy acids (preferably citric acid, lactic acid, malic acid), salts and esters thereof, N-acetyl tyrosine and derivatives, undecenoyl phenylalanine, gluconic acid, chromone derivatives, preferably aloesin, flavonoids, 1-aminoethyl phosphinic acid, thiourea derivatives, ellagic acid, nicotinamide (niacinamide), zinc salts, preferably zinc chloride or zinc gluconate, thujaplicin and derivatives, triterpenes, preferably maslinic acid, sterols, preferably ergosterol, benzofuranones, preferably senkyunolide, vinyl guiacol, ethyl guiacol, dionic acids, preferably octodecene dionic acid and/or azelaic acid, inhibitors of nitrogen oxide synthesis, preferably L- nitroarginine and derivatives thereof, 2,7-dinitroindazole or thiocitrulline, metal chelators (pref- erably alpha-hydroxy fatty acids, phytic acid, humic acid, bile acid, bile extracts, EDTA, EGTA and derivatives thereof), retinoids, soy milk and extract, serine protease inhibitors or lipoic acid or other synthetic or natural active ingredients for skin and hair lightening, the latter preferably used in the form of an extract from plants, preferably bearberry extract, rice extract, papaya extract, turmeric extract, mulberry extract, bengkoang extract, nutgrass extract, liquorice root extract or constituents concentrated or isolated therefrom, preferably glabridin or licochalcone A, artocarpus extract, extract of rumex and ramulus species, extracts of pine species (pinus), extracts of vitis species or stilbene derivatives isolated or concentrated therefrom, saxifrage extract, scutelleria extract, grape extract and/or microalgae extract, in particular Tetraselmis suecica Extract. [0146] Advantageous skin and hair tanning active ingredients in this respect are substrates or substrate analogues of tyrosinase such as L-tyrosine, N-acetyl tyrosine, L-DOPA or L-dihy- droxyphenylalanine, xanthine alkaloids such as caffeine, theobromine and theophyl-line and derivatives thereof, proopiomelanocortin peptides such as ACTH, alpha-MSH, peptide ana- logues thereof and other substances which bind to the melanocortin receptor, peptides, pyrim- idines, folic acid, copper salts such as copper gluconate, chloride or pyrrolidonate, 1,3,4-oxadi- azole-2-thiols such as 5-pyrazin-2-yl-1,3,4-oxadiazole-2-thiol, curcumin, zinc diglycinate (Zn(GIy)2), manganese(ll) bicarbonate complexes ("pseudocat-alases") as described for ex- ample in EP 0584178, tetrasubstituted cyclohexene deriva-tives as described for example in WO 2005/032501 , isoprenoids as described in WO 2005/102252 and in WO 2006/010661 , melanin derivatives such as Melasyn-100 and MelanZe, diacyl glycerols, aliphatic or cyclic diols, psoralens, prostaglandins and ana-logues thereof, activators of adenylate cyclase and compounds which activate the transfer of melanosomes to keratinocytes such as serine pro- teases or agonists of the PAR-2 receptor, extracts of plants and plant parts of the chrysanthe- mum species, san-guisorba species, walnut extracts, urucum extracts, rhubarb extracts, mi- croalgae extracts, in particular Isochrysis galbana, trehalose, erythru-lose and dihydroxyace- tone. Flavonoids which bring about skin and hair tinting or brown-ing (e.g. quercetin, rhamnetin, 230086 kaempferol, fisetin, genistein, daidzein, chrysin and api-genin, epicatechin, diosmin and dios- metin, morin, quercitrin, naringenin, hesperidin, phloridzin and phloretin) can also be used. [0147] The amount of the aforementioned examples of additional active ingredients for the modulation of skin and hair pigmentation (one or more compounds) in the products according to the invention is then preferably 0.00001 to 30 wt.-%, preferably 0.0001 to 20 wt.-%, particu- larly preferably 0.001 to 5 wt.-%, based on the total weight of the preparation. [0148] Hair growth activators or inhibitors [0149] Formulations and products according to the present invention may also comprise one or more hair growth activators, i.e. agents to stimulate hair growth. Hair growth activators are preferably selected from the group consisting of pyrimidine derivatives such as 2,4-diaminopy- rimidine-3-oxide (Aminexil), 2,4-diamino-6-piperidinopyrimidine-3-oxide (Minoxidil) and deriv- atives thereof, 6-amino-1,2-dihydro-1-hydroxy-2-imino-4-piperidinopyrimidine and its deriva- tives, xanthine alkaloids such as caffeine, theobromine and theophylline and derivatives thereof, quercetin and derivatives, dihydroquercetin (taxifolin) and derivatives, potassium channel openers, antiandrogenic agents, synthetic or natural 5-reductase inhibitors, nicotinic acid esters such as tocopheryl nicotinate, benzyl nicotinate and C1-C6 alkyl nicotinate, pro- teins such as for example the tripeptide Lys-Pro-Val, diphencypren, hormons, finasteride, du- tasteride, flutamide, bicalutamide, pregnane derivatives, progesterone and its derivatives, cy- proterone acetate, spironolactone and other diuretics, calcineurin inhibitors such as FK506 (Tacrolimus, Fujimycin) and its derivatives, Cyclosporin A and derivatives thereof, zinc and zinc salts, polyphenols, procyanidins, proanthocyanidins, phytosterols such as for example beta-sitosterol, biotin, eugenol, (±)-beta-citronellol, panthenol, glycogen for example from mus- sels, extracts from microorganisms, algae, plants and plant parts of for example the genera dandelion (Leontodon or Taraxacum), Orthosiphon, Vitex, Coffea, Paullinia, Theobroma, Asiasarum, Cucurbita or Styphnolobium, Serenoa repens (saw palmetto), Sophora flavescens, Pygeum africanum, Panicum miliaceum, Cimicifuga racemosa, Glycine max, Eugenia caryo- phyllata, Cotinus coggygria, Hibiscus rosa-sinensis, Camellia sinensis, Ilex paraguariensis, Isochrysis galbana, licorice, grape, apple, barley or hops or/nd hydrolysates from rice or wheat. [0150] Alternatively, formulations and products according to the present invention may com- prise one or more hair growth inhibitors (as described above), i.e. agents to reduce or prevent hair growth. Hair growth inhibitors are preferably selected from the group consisting of activin, activin derivatives or activin agonists, ornithine decarboxylase inhibitors such as alpha-difluo- romethylornithine or pentacyclic triterpenes like for example ursolic acid, betulin, betulinic acid, oleanolic acid and derivatives thereof, 5alpha-reductase inhibitors, androgen receptor antago- nists, S-adenosylmethionine decarboxylase inhibitors, gamma-glutamyl transpeptidase inhibi- tors, transglutaminase inhibitors, soybean-derived serine protease inhibitors, extracts from mi- croorganisms, algae, different microalgae or plants and plant parts of for example the families Leguminosae, Solanaceae, Graminae, Asclepiadaceae or Cucurbitaceae, the genera Chon- drus, Gloiopeltis, Ceramium, Durvillea, Glycine max, Sanguisorba officinalis, Calendula offici- nalis, Hamamelis virginiana, Arnica montana, Salix alba, Hypericum perforatum or Gymnema sylvestre. [0151] Skin care agents 230086 [0152] Typical examples for skin moisture retention regulators an skin repair agents encom- pass sodium lactate, urea and derivatives, glycerol, propylene glycol, 1,2-pentanediol, 1,2- hexanediol and 1,2-octanediol, collagen, elastin or hyaluronic acid, diacyl adipates, petrolatum, urocanic acid, lecithin, allantoin, panthenol, phytantriol, lycopene, (pseudo-)ceramides (prefer- ably Ceramide 2, hydroxypropyl bispalmitamide ME A, cetyloxypropyl glyceryl methoxypropyl myristamide, N- (1-hexadecanoyl)-4-hydroxy-L-proline (1-hexadecyl) ester, hydroxyethyl pal- mityl oxyhydroxypropyl palmitamide), glycosphingolipids, cholesterol, phytosterols, chitosan, chondroitin sulfate, lanolin, lanolin esters, amino acids, vitamin E and derivatives (preferably tocopherol, tocopheryl acetate), alpha-hydroxy acids (preferably citric acid, lactic acid, malic acid) and derivatives thereof, mono-, di- and oligosaccharides, preferably glucose, galactose, fructose, mannose, laevulose and lactose, polysugars, such as b- glucans, in particular 1,3- 1,4-p-glucan from oats, alpha-hydroxy-fatty acids, triterpenic acids, such as betulic acid or ur- solic acid, and algae extracts or single active compounds thereof, (vii) physiological cooling agents, preferably selected from the group consisting of menthone glycerol acetal, menthyl lactate preferably l-menthyl lactate, in particular l-menthyl l-lactate), menthyl ethyl oxamate, substituted menthyl-3- carboxylic acid amides (e.g. menthyl-3-carboxylic acid N-ethylamide, Na-(L- menthanecarbonyl)glycine ethyl ester, 2-isopropyl-N-2,3- trimethylbutanamide, substi- tuted cyclohexanecarboxylic acid amides, 3- menthoxypropane-1,2-diol, 2-hydroxyethyl menthyl carbonate, 2- hydroxypropyl menthyl carbonate, N-acetylglycine menthyl ester, isop- ulegol, menthyl hydroxycarboxylic acid esters (e.g. menthyl 3-hydroxybutyrate), monomenthyl succinate, monomenthyl glutarate, 2-mercaptocyclodecanone, menthyl 2-pyrrolidin-5-onecar- boxylate, 2,3-dihydroxy-p-menthane, 3,3,5- trimethylcyclohexanone glycerol ketal, 3-menthyl 3,6-di- and -trioxaalkanoates, 3-menthyl methoxyacetate and icilin, and [0153] Physiological cooling and warming agents [0154] Physiological cooling agents are liquid or solid, particular crystalline substances. The sensation of cold is not triggered physically, but by binding of the cooling agent to a cold re- ceptor that is physiologically activated by cool temperatures. This is the cation channel TRPM8 from the family of TRP channels. TRPM8 is localized at free nerve terminals of afferent A and C fibers and is of central importance for the sensation of cold. Physiological cooling agents such as menthol and menthol compounds are preferably selected from the group formed by the species depicted in the following table (including their optical isomers and racemates): Component FEMA/GRAS Product/Trade- mark Menthol Menthol glyceryl acetal 3807 Frescolat° MGA Menthol glyceryl ketal 3808 Frescolat° MGA Menthol menthyl ether Menthone glyceryl acetal Menthone glyceryl ketal Menthoxy-1,2-propandiol 3784 Menthoxy-2-methyl-1,2-propanediol 3849 Menthyl acetate SymFresh° RF Menthyl ethylene glycol carbonate 3805 Frescolat° MGC Menthyl formiate Menthyl glutamate 4006 Menthyl glycerol carbonate Menthyl hydroxy isobutyrate Menthyl isobutyrate Menthyl lactate Frescolat° ML Menthyl malonate Menthyl methyl ether Menthyl N-ethyl oxamate Menthyl propylene glycol carbonate 3806 Frescolat° MPC Menthyl pyroglutamate Menthyl-(2-methoxy)acetate Menthyl-(2-methoxyethoxy)acetate Menthyl succinate 3810 O-Menthyl succinic acid ester amide O-Menthyl succinic acid ester-NN-(dimethyl)amide Menthane carboxylic acid-N-(4-cyanophenyl)amide Menthane carboxylic acid-N-(4-cyanomethylphenyl)amide Menthane carboxylic acid-N-ethylamide (WS-3) (WS-4) Nα-(menthane carbonyl) glycinc ethylester (WS-5) (1R,2S,5R)-N-(4-Methoxyphenyl)-5-methyl-2-(1-isopro- pyl)cyclohexane-carboxamide (WS-12) (WS-14) 2,3-dimethyl-2-(2-propyl)-butyric acid-N-methylamide (WS23) Isopulegol acetate p-Menthane-3,8-diol Cubebol 3-Methyl-2(1-pyrrolidinyl)-2-cyclopentene-1-one) Tetrahydropyrimidine-2-one N-(2-(pyridin-2-yl)ethyl)-3-p-menthanecarboxamide [(1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl] 2-(ethyla- X Cool mino)-2-oxo-acetate [0155] Physiological warming agents can be selected from the group consisting of capsaicin, dihydrocapsaicin, nordihydrocapsaicin, homocapsaicin, homodihydrocapsaicin nonivamid, vannilyl butyl ether, and chili extracts. [0156] Anti-itching and anti-inflammatory agents [0157] Suitable anti-inflammatory agents may be selected from the group consisting of: (i) steroidal anti-inflammatory substances of the corticosteroid type, in particular hydrocor- tisone, hydrocortisone derivatives such as hydrocortisone 17-butyrate, dexamethasone, dex- amethasone phosphate, methylprednisolone or cortisone, (ii) non-steroidal anti-inflammatory substances, in particular oxicams such as piroxicam or tenoxicam, salicylates such as aspirin, disalcid, solprin or fendosal, acetic acid derivatives such as diclofenac, fenclofenac, indomethacin, sulindac, tolmetin or clindanac, fenamates such as mefenamic, meclofenamic, flufenamic or niflumic, propionic acid derivatives such as ibuprofen, naproxen or benoxaprofen, pyrazoles such as phenylbutazone, oxyphenylbutazone, febra- zone or azapropazone, (iii) natural or naturally occuring anti-inflammatory substances or substances that alleviate reddening and/or itching, in particular extracts or fractions from camomile, Aloe vera, Commi- phora species, Rubia species, willow, willow-herb, oats, calendula, arnica, St John's wort, hon- eysuckle, rosemary, Passiflora incarnata, witch hazel, ginger or Echinacea, or single active compounds thereof, (iv) histamine receptor antagonists, serine protease inhibitors (e.g. of Soy extracts), TRPV1 antagonists (e.g. 4-t-Butylcyclohexanol), NK1 antagonists (e.g. Aprepitant, Hydroxyphenyl Propamidobenzoic Acid), cannabinoid receptor agonists (e.g. Palmitoyl Ethanolamine) and TRPV3 antagonists. [0158] Anti-microbial agents [0159] Suitable anti-microbial agents are, in principle, all substances effective against Gram- positive bacteria, Gram-negative bacteria and fungi, such as, for example, 4- hydroxybenzoic acid and its salts and esters, N-(4-chlorophenyl)-N'-(3,4- dichlorophenyl)urea, 2,4,4'-trichloro- 2'-hydroxy-diphenyl ether (triclosan), 4-chloro-3,5-dimethyl-phenol, 2,2'-methylenebis(6- bromo-4- chlorophenol), 3-methyl-4-(1-methylethyl)phenol, 2-benzyl-4-chloro-phenol, 3-(4- chlorophenoxy)-1,2-propanediol, 3-iodo-2-propynyl butylcarbamate, chlorhexidine, 3,4,4'-tri- chlorocarbanilide (TTC), antibacterial fragrances, thymol, thyme oil, eugenol, oil of cloves, menthol, mint oil, farnesol, phenoxyethanol, glycerol monocaprate, glycerol monocaprylate, glycerol monolaurate (GML), diglycerol monocaprate (DMC), 1,3-propanediol monocaprylate, 230086 4-hydroxy acetophenone, salicylic acid N-alkylamides, such as, for example, n-octylsalic- ylamide or n- decylsalicylamide. [0160] Alternatively, suitable anti-microbial agents are selected from the group consisting of Caprylhydroxamic Acid, o-Cymen-5-ol, Isopropylparaben, Capryloyl Glycine, Phenylpropanol, Tropolone, PCA Ethyl Cocoyl Arginate, 2-Methyl 5-Cyclohexylpentanol, Phenoxyethanol, Disodium EDTA, Cetrimonium Chloride, Methylparaben and its salts, Sodium Benzoate, Ben- zyl Alcohol, Potassium Sorbate, Benzyl Salicylate, Propylparaben, Sodium Methylparaben, Methylchloroisothiazolinone, Methylisothiazolinone, Ethylhexylglycerin, Butylparaben, Ethylparaben, Sodium Propylparaben, DMDM Hydantoin, Dehydroacetic Acid, Salicylic Acid, Chlorphenesin, Isobutylparaben, Sodium Ethylparaben, Diazolidinyl Urea, Diazolidinyl Urea, Farnesol, Bisabolol, Formic acid and its salts, Glyceryl Caprylate, Sodium Phytate or Phytic Acid, Sodium Levulinate or Levulinic Acid and esters and/or ketals thereof, Chlorhexidine, Glyceryl Laurate, Anisic Acid and its salts, Chlorhexidine Digluconate, TEA-salicylate, Phenethyl Alcohol, Glyceryl Caprate, Sorbitan Caprylate, Tetrasodium Glutamate Diacetate, Trisodium Ethylenediamine Disuccinate, Hydroxyethoxyphenyl Butanone, Hydroxyethoxy- phenyl Butanol, Itaconic Acid, Octopirox, Propanediol Caprylate, Climbazole, Undecylenoyl Glycine, Thymol, 4-Hydroxyacetophenone, Lactic Acid, Sodium Lactate, Trisodium Dicarbox- ymethyl Alaninate, Frambinon, Xylityl caprylate, Benzoic acid 3-hyroxypropylester, Anisic acid 3-hydroxypropylester, 3-Hydroxypropyl 2-hydroxybenzoate,1,3-propanediol, 1,2-pentanediol, 1,2-hexanediol, 1,2-heptanediol, 1,2-octanediol, 1,2-nonanediol, 1,2-decanediol, 2,3-pentane- diol, 2,3-hexanediol, 2,3-heptanediol, 2,3-octanediol, 2,3-nonanediol, Benzoesäure-3-hydrox- ypropylester, and mixtures of two or more the aforesaid antimicrobial components. [0161] Enzyme inhibitors [0162] Suitable enzyme inhibitors are, for example, esterase inhibitors. These are preferably trialkyl citrates, such as trimethyl citrate, tripropyl citrate, triisopropyl citrate, tributyl citrate and, in particular, triethyl citrate (Hydagen CAT). The substances inhibit enzyme activity, thereby reducing the formation of odour. Other substances which are suitable esterase inhibitors are sterol sulfates or phosphates, such as, for example, lanosterol, cholesterol, campesterol, stig- masterol and sitosterol sulfate or phosphate, dicarboxylic acids and esters thereof, such as, for example, glutaric acid, monoethyl glutarate, diethyl glutarate, adipic acid, monoethyl adipate, diethyl adipate, malonic acid and diethyl malonate, hydroxycarboxylic acids and esters thereof, such as, for example, citric acid, malic acid, tartaric acid or diethyl tartrate, and zinc glycinate. [0163] Odour absorbers and antiperspirant active agents [0164] Suitable odour absorbers are substances which are able to absorb and largely retain odour-forming compounds. They lower the partial pressure of the individual components, thus also reducing their rate of diffusion. It is important that perfumes must remain unimpaired in this process. Odour absorbers are not effective against bacteria. They comprise, for example, as main constituent, a complex zinc salt of ricinoleic acid or specific, largely odour-neutral fragrances which are known to the person skilled in the art as "fixatives", such as, for example, extracts of labdanum or styrax or certain abietic acid derivatives. The odour masking agents are fragrances or perfume oils, which, in addition to their function as odour masking agents, 230086 give the deodorants their respective fragrance note. Perfume oils which may be mentioned are, for example, mixtures of natural and synthetic fragrances. Natural fragrances are extracts from flowers, stems and leaves, fruits, fruit peels, roots, woods, herbs and grasses, needles and branches, and resins and balsams. Also suitable are animal products, such as, for exam- ple, civet and castoreum. Typical synthetic fragrance compounds are products of the ester, ether, aldehyde, ketone, alcohol, and hydrocarbon type. Fragrance compounds of the ester type are, for example, benzyl acetate, p-tert-butylcyclohexyl acetate, linalyl acetate, phe- nylethyl acetate, linalyl benzoate, benzyl formate, allyl cyclohexylpropionate, styrallyl propio- nate and benzyl salicylate. The ethers include, for example, benzyl ethyl ether, and the alde- hydes include, for example, the linear alkanals having 8 to 18 carbon atoms, citral, citronellal, citronellyloxyacetaldehyde, cyclamen aldehyde, hydroxycitronellal, lilial and bourgeonal, the ketones include, for example, the ionones and methyl cedryl ketone, the alcohols include an- ethole, citronellol, eugenol, isoeugenol, geraniol, linaool, phenylethyl alcohol and terpineol, and the hydrocarbons include mainly the terpenes and balsams. Preference is, however, given to using mixtures of different fragrances which together produce a pleasing fragrance note. Es- sential oils of relatively low volatility, which are mostly used as aroma components, are also suitable as perfume oils, e.g. sage oil, camomile oil, oil of cloves, melissa oil, mint oil, cinnamon leaf oil, linden flower oil, juniperberry oil, vetiver oil, olibanum oil, galbanum oil, labdanum oil and lavandin oil. Preference is given to using bergamot oil, dihydromyrcenol, lilial, lyral, cit- ronellol, phenylethyl alcohol, α-hexylcinnamaldehyde, geraniol, benzylacetone, cyclamen al- dehyde, linalool, boisambrene forte, ambroxan, indole, hedione, sandelice, lemon oil, manda- rin oil, orange oil, allyl amyl glycolate, cyclovertal, lavandin oil, clary sage oil, β- damascone, geranium oil bourbon, cyclohexyl salicylate, Vertofix coeur, iso-E-super, Fixolide NP, evernyl, iraldein gamma, phenylacetic acid, geranyl acetate, benzyl acetate, rose oxide, romilat, irotyl and floramat alone or in mixtures. [0165] Suitable astringent antiperspirant active ingredients are primarily salts of aluminium, zirconium or of zinc. Such suitable antihydrotic active ingredients are, for example, aluminium chloride, aluminium chlorohydrate, aluminium dichlorohydrate, aluminium sesquichlorohydrate and complex compounds thereof, e.g. with 1,2- propylene glycol, aluminium hydroxyallan- toinate, aluminium chloride tartrate, aluminium zirconium trichlorohydrate, aluminium zirco- nium tetrachlorohydrate, aluminium zirconium pentachlorohydrate and complex compounds thereof, e.g. with amino acids, such as glycine. [0166] Film formers and anti-dandruff agents [0167] Standard film formers are, for example, chitosan, microcrystalline chitosan, quaternized chitosan, polyvinyl pyrrolidone, vinyl pyrrolidone/vinyl acetate copolymers, polymers of the acrylic acid series, quaternary cellulose derivatives, collagen, hyaluronic acid and salts thereof and similar compounds. [0168] Suitable antidandruff agents are Pirocton Olamin (1-hydroxy-4-methyl-6-(2,4,4-trime- thylpentyl)-2-(1H)-pyridinone monoethanolamine salt), Baypival® (Climbazole), Ketoconazol® (4-acetyl-1-{4-[2-(2,4-dichlorophenyl) r-2-(1H-imidazol-1-ylmethyl)-1,3-dioxylan-c-4-ylmethox- yphenyl}-piperazine, ketoconazole, elubiol, selenium disulfide, colloidal sulfur, sulfur polyeth- ylene glycol sorbitan monooleate, sulfur ricinol polyethoxylate, sulfur tar distillate, salicylic acid 230086 (or in combination with hexachlorophene), undecylenic acid, monoethanolamide sulfosuccin- ate Na salt, Lamepon® UD (protein/undecylenic acid condensate), zinc pyrithione, aluminium pyrithione and magnesium pyrithione/dipyrithione magnesium sulfate. [0169] Carriers and hydrotropes [0170] Preferred cosmetics carrier materials are solid or liquid at 25°C and 1013 mbar (includ- ing highly viscous substances) as for example glycerol, 1,2-propylene glycol, 1,2-butylene gly- col, 1,3-propylene glycol, 1,3-butylene glycol, ethanol, water and mixtures of two or more of said liquid carrier materials with water. Optionally, these preparations according to the inven- tion may be produced using preservatives or solubilizers. Other preferred liquid carrier sub- stances, which may be a component of a preparation according to the invention are selected from the group consisting of oils such as vegetable oil, neutral oil and mineral oil. [0171] Preferred solid carrier materials, which may be a component of a preparation according to the invention are hydrocolloids, such as starches, degraded starches, chemically or physi- cally modified starches, dextrins, (powdery) maltodextrins (preferably with a dextrose equiva- lent value of 5 to 25, preferably of 10 – 20), lactose, silicon dioxide, glucose, modified cellu- loses, gum arabic, ghatti gum, traganth, karaya, carrageenan, pullulan, curdlan, xanthan gum, gellan gum, guar flour, carob bean flour, alginates, agar, pectin and inulin and mixtures of two or more of these solids, in particular maltodextrins (preferably with a dextrose equivalent value of 15 – 20), lactose, silicon dioxide and/or glucose. [0172] In addition, hydrotropes, for example ethanol, isopropyl alcohol or polyols, may be used to improve flow behaviour. Suitable polyols preferably contain 2 to 15 carbon atoms and at least two hydroxyl groups. The polyols may contain other functional groups, more especially amino groups, or may be modified with nitrogen. Typical examples are ^ glycerol; ^ alkylene glycols such as, for example, ethylene glycol, diethylene glycol, propylene glycol, butylene glycol, hexylene glycol and polyethylene glycols with an average molecular weight of 100 to 1000 Dalton; ^ technical oligoglycerol mixtures with a degree of self-condensation of 1.5 to 10, such as for example technical diglycerol mixtures with a diglycerol content of 40 to 50% by weight; ^ methylol compounds such as, in particular, trimethylol ethane, trimethylol propane, trimethylol butane, pentaerythritol and dipentaerythritol; ^ lower alkyl glucosides, particularly those containing 1 to 8 carbon atoms in the alkyl group, for example methyl and butyl glucoside; ^ sugar alcohols containing 5 to 12 carbon atoms, for example sorbitol or mannitol, ^ sugars containing 5 to 12 carbon atoms, for example glucose or sucrose; ^ amino sugars, for example glucamine; ^ dialcoholamines, such as diethanolamine or 2-aminopropane-1,3-diol. [0173] Preservatives and/or product protection agents 230086 [0174] Suitable preservatives are listed in Appendix 6, Parts A and B of the Kosmetikver- ordnung (“Cosmetics Directive”). [0175] Suitable species can be selected from the group consisting of preservatives selected from the group consisting of benzoic acid and para-hydroxybenzoic acid, their esters and salts, benzyl benzoate, propionic acid and its salts, salicylic acid and its salts, 2,4-hexadienoic acid (sorbic acid) and its salts, levulinic acid and its salts, anisic acid and its salts, perillic acid and its salts, cinnamic acid and its salts, formaldehyde and paraformaldehyde, 4-hydroxy benzal- dehyde, ortho-, meta-, and para-anisic aldehyde, cinnamic aldehyde, cinnamic alcohol, 2-hy- droxybiphenyl ether and its salts, 2-zinc-sulfidopyridine N-oxide, inorganic sulfites and bisul- fites, sodium iodate, chlorobutanolum, 4-ethylmercury-(II)5-amino-1,3-bis(2-hydroxybenzoic acid), its salts and esters, dehydracetic acid, formic acid, 1,6-bis(4-amidino-2-bromophenoxy)- n-hexane and its salts, the sodium salt of ethylmercury-(II)-thiosalicylic acid, phenylmercury and its salts, 10-undecylenic acid and its salts, 5-amino-1,3-bis(2-ethylhexyl)-5-methyl-hexa- hydropyrimidine, 5-bromo-5-nitro-1,3-dioxane, 2-bromo-2-nitro-1,3-propanediol, 2,4-dichloro- benzyl alcohol, N-(4-chlorophenyl)-N’-(3,4-dichlorophenyl)-urea, 4-chloro-m-cresol, 2,4,4’-tri- chloro-2’-hydroxy-diphenyl ether, 4-chloro-3,5-dimethylphenol, 1,1’-methylene-bis(3-(1-hy- droxymethyl-2,4-dioximidazolidin-5-yl)urea), poly-(hexamethylenediguanide) hydrochloride, (Benzyloxymethoxy)-methanol hexamethylenetetramine, 1-(3-chloroallyl)-3,5,7-triaza-1-azo- nia-adamantane chloride, 1-(4-chlorophenoxy)-1-(1H-imidazol-1-yl)-3,3-dimethyl-2-butanone, 1,3-bis-(hydroxymethyl)-5,5-dimethyl-2,4-imidazolidinedione, 1,2-dibromo-2,4-dicyanobutane, 2,2’-methylene-bis(6-bromo-4-chlorophenol), bromochlorophene, mixture of 5-chloro-2-me- thyl-3(2H)-isothiazolinone, 2-methyl-3(2H)-isothiazolinone and with magnesium chloride and magnesium nitrate, 2-Octyl-2H-isothiazol-3-one, 1,2-benzisothiazol-3(2H)-one, 2-benzyl-4- chlorophenol, 3-(4-Chlorphenoxy)-1,2-propanediol (Chlorphenesin), 2-chloroacetamide, chlor- hexidine, chlorhexidine acetate, chlorhexidine gluconate, chlorhexidine hydrochloride, N-al- kyl(C12-C22)trimethyl-ammonium bromide and chloride, 4,4-dimethyl-1,3-oxazolidine, N-hy- droxymethyl-N-(1,3-di(hydroxymethyl)-2,5-dioxoimidazolidin-4-yl)-N’-hydroxy-methylurea, 1,6-bis(4-amidino-phenoxy)-n-hexane and its salts, glutaraldehyde, 5-ethyl-1-aza-3,7-dioxabi- cyclo(3.3.0)octane, 3-(4-chlorophenoxy)-1,2-propanediol, hyamines, alkyl-(C8-C18)-dimethyl- benzyl-ammonium chloride, alkyl-(C8-C18)-dimethyl-benzylammonium bromide, alkyl-(C8-C18)- dimethyl-benzyl-ammonium saccharinate, benzyl hemiformal, 3-iodo-2-propynyl butylcarba- mate, sodium hydroxymethyl-aminoacetate or sodium hydroxymethyl-aminoacetate, imidazol- idinylurea, diazolidinylurea, sodium hydroxymethylglycinate, DMDM hydantoin, Tropolone, (Ethylendioxy)dimethanol, 2-Brom-2-(brommethyl)pentandinitril, N-(3-Aminopropyl)-N-do- decylpropan-1,3-diamin, α,α‘,α“-trimethyl-1,3,5-triazine-1,3,5(2H,4H,6H)-triethanol, pyridine- 2-thiol-1-oxide, sodium salt, Tetrahydro-1,3,4,6-tetrakis(hydroxymethyl)imidazo[4,5-d]imid- azol-2,5(1H,3H)-dion, 1,3-bis(hydroxymethyl) -1-(1,3,4-tris(hydroxy-methyl)-2,5-dioxoimidaz- olidin-4-yl)urea (Diazolidinyl Urea), 1,3-Bis(hydroxy-methyl)-5,5-dimethylimidazolidine-2,4-di- one, 3-Acetyl-2-hydroxy-6-methyl-4H-pyran-4-one, cetyl pyridium chloride, caprylhydroxamic acid, sorbohydroxamic acid and their mixtures; 1,3-propanediol, methyl propanediol, 1,2-pen- tanediol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol, 1,5-pentanediol, 1,6-hexanediol, 1,8- octanediol, 1,2-decanediol, ethylhexylglycerin, hexoxy-propan-1,2-diol, heptoxy- propan-1,2- diol, octoxy-propan-1,2-diol, 3-phenoxy-propan-1,2-diol, 3-benzyloxy-propan-1,2-diol, 3- 230086 phenylethyloxy-propan-1,2-diol, 3-phenylpropyloxy-propan-1,2-diol, 3-methylbenzyloxy-pro- pan-1,2-diol, sorbitan caprylate, triclosan, climbazole, Octopirox (1-hydroxy-4-methyl-6-(2,4,4- trimethylpentyl)-2(1H)-pyridone, 2-aminoethanol), chitosan, farnesol, 2-butyloctanoic acid, 2- Benzylheptan-1-ol, glycerol monolaurate, bis(2-pyridylthio)zinc 1,1'-dioxide, N,N'-(decane- 1,10-diyldipyridin-1-yl-4-ylidene)-dioctan-1-amine dihydrochloride (octenidine dihydrochlo- ride), thymol, eugenol, benzyl alcohol, 2-phenyethyl alcohol, 3-phenyl propanol, 2-phenoxy- ethanol, 1-phenoxy-propan-2-ol, 3-phenoxypropanol, benzyloxymethanol, 4-hydroxyaceto- phenone and mixtures thereof. [0176] Perfume oils [0177] Suitable perfume oils are mixtures of natural and synthetic perfumes. Natural perfumes include the extracts of blossoms (lily, lavender, rose, jasmine, neroli, ylang-ylang), stems and leaves (geranium, patchouli, petitgrain), fruits (anise, coriander, caraway, juniper), fruit peel (bergamot, lemon, orange), roots (nutmeg, angelica, celery, cardamom, costus, iris, calmus), woods (pinewood, sandalwood, guaiac wood, cedarwood, rosewood), herbs and grasses (tar- ragon, lemon grass, sage, thyme), needles and branches (spruce, fir, pine, dwarf pine), resins and balsams (galbanum, elemi, benzoin, myrrh, olibanum, opoponax). Animal raw materials, for example civet and beaver, may also be used. [0178] Fragrances [0179] Suitable fragrances encompass: [0180] Aliphatic esters such as 1-phenyl-2-methyl-2-propyl acetate, 2-methylbutyl butyrate, aldron (4-[(3,3-dimethylbicyclo[2.2.1]hept-2-yl)methyl]-2-methylcyclohexanone), allyl 2-cyclo- hexyloxyglycolate, allyl 2-pentyloxyglycolate, allyl 3-cyclohexylpropionate, allyl capronate, amarocite (1,1-dimethoxy-2,2,5-trimethyl-4-hexene), ambral (dodecahydro-3,8,8,11a-tetrame- thyl-5H-3. 5a-epoxynaphth[2. 1-c]oxepin), ambretolide (9-hexadecene-16-olide), ambrinol S (1,2,3,4,4a,5,6,7-octahydro-2,6,6-trimethyl-2-napthalinol), ambrinolepoxide, Ambrocenides (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanoazuleno(5,6-d)-1,3-di- oxole), Ambroxide (3a,6,6, 9a-tetramethyldodecahydronaphtho[2,1-b]-furan), amyl formate, aureliones (7-cyclohexadecen-1-one and 8-cyclohexadecen-1-one), boronal [2-methyl-4-(2, 6,6-trimethyl-1-cyclohexen-1-yl)-butenal], brahmanol [2-methyl-4-(2,2,3-trimethyl-3-cyclopen- tenyl)-butanol], buccoxime (1,5-dimethylbicyclo[3.2.1]octan-8-onoxime), butyl acetate, cantryl (2,2,3-trimethyl-3-cyclopentenyl-1-acetonitrile), Cassix 150 (4-methoxy-2-methyl-2-bu- tanethiol), chrysanthemum [1-(2,4-dimethyl-3-cyclohexen-1-yl)-2, 2-dimethyl-1-propanone], cis-3-hexenyl acetate, citronellyl butyrate, citronellyl tetlinate (3,7-dimethyl-6-octenyl-2-methyl crotonate), citronitrile (3-methyl-5-phenyl-2-pentenenitrile), Citrowanil B (alpha-ethenylalpha- methyl-benzeneproprannitrile), Claritone (2,4,7-tetramethyl-6-octen-3-one), Corps Racine VS [2-(3-phenylpropyl)pyridine], Coumarone (1-(2-benzofuranyl)-ethanone), Cyclogalbanate (al- lylcyclohexyloxyacetate), Cyclohexylmagnol (alpha-methylcyclohexanepropanol), Datilate (1- cyclohexylethylcrotonate), Ethyl 2-methylbutyrate, Ethyl isobutyrate, Ethyl isovalerate, Ethyl tricyclo[5. 2.1. 02,6]decan-2-ylcarboxylate, farenal (2,6,10-trimethyl-9-undecenal), filbertone (5-methyl-2-hepten-4-one), fleursandol (4-(3a,4,5,6,7,7a-hexahydro-4,7-methano-1H-inden-6- yl)-3-methyl-3-buten-2-ol), florazone (4-ethyl-alpha,alpha-dimethyl benzenepropanal), floropal (2,4, 6-trimethyl-4-phenyl-1,3-dioxane), fragolane [(2,4-dimethyl-[1,3]dioxolan-2-yl)ethyl 230086 acetate)], frutinate (but-2-enoic acid-1,3-dimethylbutyl ester), gamma-decalactone, geranyl ac- etate, geranyl butyrate, geranyl tetlinate (trans-3,7-dimethyl-2,6-octadienyl-2-methyl croto- nate), Globanone [(11/12)-pentadecen-15-olide], globanone (8-cyclohexadecen-1-one), hexyl butyrate, hydrocitronitrile (beta-methyl-benzene-pentannitrile), Indianol (4-[3a,4,5,6,7,7a-Hex- ahydro-4,7-methano-1H-inden-5(6)-yl]-3-methyl-3-buten-2-ol), Indoflor (4,4a,5,9b-Tetra- hydoindeno[1,2-d]-m-dioxin), Irisnitrile (2-nonenylnitrile), isoamyl acetate, isoamyl isova- lerianate, isodamascon [1-(2,4,4-trimethyl-2-cyclohexen-1-yl)-2-buten-1-one], Isomuscon (cy- clohexadecanone), Jacinthaflor (2-methyl-4-phenyl-1,3-dioxolane), Ketamber (dodecahydro- 3,8,8,11a-tetramethyl-5H-3,5a-epoxynaphth[2.1-c]oxepin), lactojasmon (4-hexyl-4-methyl-bu- tyrolactone), leguminal (propanal-methyl-cis-3-hexenyl-acetal), macrolide (oxacyclohexa- decan-2-one), Madranol (mixture of various hexahydro methylionones), Magnolan (2,4-dime- thyl-5,6-indeno-1,3-dioxane), Majantol [2,2-dimethyl-3-(3-methylphenyl)-propanol], Mandaril (3,12-tridecadiennitrile), Menthyl acetate, methyl butyrate, methyl dihydrojasmonate, methyl isobutyrate, mintonate (3,3,5-trimethylcyclohexyl acetate), mugetanol [1-(4-isopropylcyclo- hexyl)-ethanol], Nerolione [1-(3-methyl-2-benzofuranyl)-ethanone], Octyl acetate, Ozonil (2- tridecenenitrile), Palisandal (1,1-dimethoxycyclododecane), Palisandin (cyclododecyl methyl ether), Parmanyl [3-(cis-3-hexenyloxy)-propannitrile], passifloran (3-acetylthiohexyl acetate), peacholide (cis- and trans-3-methyl-gamma-decalactone), Prenyl salicylate, Profarnesal (2,6,10-trimethyl-5,9-undecadienal), Projasmon P (2-heptylcyclopentanone), Pyroprunate (but-2-enoic acid bicyclopenten-2-yl ester), Rholiate (carbonic acid ethyl 2,3,6-trimethylcyclo- hexyl ester), Rosaphene (2-methyl-5-phenylpentan-1-ol), Rose oxide, Sandel 80 (trans-3- isocamphylcyclohexanol), Sandranol (2-ethyl-4-(2,2,3-trimethyl-3-cyclpenten-1-yl)-2-buten-1- ol), Symrose (4-isoamylcyclohexanol), Symroxane (4-(3-methylbutyl)-cyclohexanol (Z)), Tabanone [4-(2-butenylidene)-3,4,5-trimethyl-2-cyclohexen-1-one], Terpineol-4, Timberol (2,2,6-trimethyl-alpha-propyl-cyclohexanepropanol), Tolylacetataldehyde D para (4-methyl- benzeneacetaldehyde), Tricyclodecenylpropionate, Tropicol (2-mercapto-2-methyl-pentan-1- ol), Vertosine [2-(2,4-(or 3, 5)-dimethyl-3-cyclohexen-1-yl)-methyleneaminobenzoic acid me- thyl ester], Vertral (octahydro-4,7-methano-1H-indencarbaldehyde), Vetikol acetate (1,3-dime- thyl-3-phenylbutyl acetate), Vetival (4-cyclohexyl-4-methylpentan-2-one), Ysamber K (spiro hexahydro-1',1',5',5'-tetramethyl-[1,3-dioxolane-2,8'-(5'H)-[2H-2,4a]-methanonaphthalene]. [0181] Aliphatic aldehydes and their acetals such as B. Hexanal; heptanal; octanal; nona- nal; decanal; undecanal; dodecanal; tridecanal; 2-methyloctanal; 2-methylnonanal; (E)-2-hex- enal; (Z)-4-heptenal; 2;6-dimethyl-5-heptenal; 10-undecenal; (E)-4-decenal; 2-dodecenal; 2,6,10-trimethyl-9-undecenal; 2,6,10-trimethyl-5,9-undecadienal; heptanaldiethyl acetal; 1,1- dimethoxy-2,2,5-trimethyl-4-hexene; citronellyloxyacetaldehyde; 1-(1-methoxy-propoxy)- (E/Z)-3-hexene; [0182] Aliphatic ketones and their oximes such as B. 2-heptanone; 2-octanone; 3-oc- tanone; 2-nonanone; 5-methyl-3-heptanone; 5-methyl-3-heptanone oxime; 2,4,4,7-tetrame- thyl-6-octen-3-one; 6-methyl-5-hepten-2-one; [0183] Aliphatic sulfur-containing compounds such as 3-methylthiohexanol; 3-methylthio- hexyl acetate; 3-mercaptohexanol; 3-mercaptohexyl acetate; 3-mercaptohexyl butyrate; 3- acetylthiohexyl acetate; 1-menthen-8-thiol; 230086 [0184] Aliphatic nitriles such as e.g., 2-nonenoic acid nitrile; 2-undecenoic acid nitrile; 2- tridecenoic acid nitrile; 3,12-tridecadienoic acid nitrile; 3,7-dimethyl-2,6-octadienoic acid nitrile; 3,7- Dimethyl-6-octenoic acid nitrile; [0185] Araliphatic alcohols, such as B. Benzyl alcohol; 1-phenylethyl alcohol; 2-phenylethyl alcohol; 3-phenylpropanol; 2-phenylpropanol; 2-phenoxyethanol; 2,2-dimethyl-3-phenylpropa- nol; 2,2-dimethyl-3-(3-methylphenyl)propanol; 1,1-dimethyl-2-phenylethyl alcohol; 1,1-dime- thyl-3-phenylpropanol; 1-ethyl-1-methyl-3-phenylpropanol; 2-methyl-5-phenylpentanol; 3-me- thyl-5-phenylpentanol; 3-phenyl-2-propen-1-ol; 4-methoxybenzyl alcohol; 1-(4-iso- propylphenyl)ethanol; [0186] Araliphatic ethers, such as for example, 2-phenylethyl methyl ether; 2-phenylethyl isoamyl ether; 2-phenylethyl 1-ethoxyethyl ether; Phenylacetaldehyde dimethyl acetal; phe- nylacetaldehyde diethyl acetal; hydratropaaldehyde dimethyl acetal; phenylacetaldehyde glyc- erol acetal; 2,4,6-trimethyl-4-phenyl-1,3-dioxane; 4,4a,5,9b-tetrahydroindeno[1,2-d]-m-dioxin; 4,4a,5,9b-tetrahydro-2,4-dimethylindeno[1,2-d]-m-dioxin; [0187] Aromatic and araliphatic aldehydes, such as e.g., benzaldehyde; phenylacetalde- hyde; 3-phenylpropanal; hydratropaaldehyde; 4-methylbenzaldehyde; 4-methylphenylacetal- dehyde; 3-(4-ethylphenyl)-2,2-dimethylpropanal; 2-methyl-3-(4-isopropylphenyl)propanal; 2- methyl-3-(4-tert.- butylphenyl)propanal; 2-methyl-3-(4-isobutylphenyl)propanal; 3-(4-tert.- bu- tylphenyl)propanal; cinnamaldehyde; alpha-butylcinnamaldehyde; alpha-amylcinnamalde- hyde; alpha-hexylcinnamaldehyde; 3-methyl-5-phenylpentanal; 4-methoxybenzaldehyde; 4- hydroxy-3-methoxybenzaldehyde; 4-hydroxy-3-ethoxybenzaldehyde; 3,4-methylenedioxyben- zaldehyde; 3,4-dimethoxybenzaldehyde; 2-methyl-3-(4-methoxyphenyl)propanal; 2-methyl-3- (4-methylenedioxyphenyl)propanal; [0188] Aromatic and araliphatic ketones, such as e.g. acetophenone; 4-methylacetophe- none; 4-methoxyacetophenone; 4-tert.- butyl-2,6-dimethylacetophenone; 4-phenyl-2-buta- none; 4-(4-hydroxyphenyl)-2-butanone; 1-(2-naphthalenyl)ethanone; 2-benzofuranyleth- anone; (3-methyl-2-benzofuranyl)ethanone; benzophenone; 1,1,2,3,6-hexamethyl-5-indanyl methyl ketone; 6-tert. butyl-1,1-dimethyl-4-indanyl methyl ketone; 1-[2,3-dihydro-1,1,2,6-tetra- methyl-3-(1-methylethyl)-1H-5-indenyl] ethanone; 5',6',7',8'-tetrahydro-3',5',5',6',8',8'-hexame- thyl-2-acetonaphthone; [0189] Aromatic and araliphatic carboxylic acids and their esters, such as Benzoic acid; phenylacetic acid; methyl benzoate; ethyl benzoate; hexyl benzoate; benzyl benzoate; methyl phenyl acetate; ethyl phenyl acetate; geranyl phenyl acetate; phenyl ethyl phenyl acetate; me- thyl cinnamate; ethyl cinnamate; benzyl cinnamate; phenyl ethyl cinnamate; cinnamyl cin- namate; allyl phenoxy acetate; methyl salicylate; isoamyl salicylate; hexyl salicylate; cyclohexyl salicylate; cis-3-hexenyl salicylate; benzyl salicylate; phenyl ethyl salicylate; methyl 2,4-dihy- droxy-3,6-dimethylbenzoate; ethyl 3-phenyl glycidate; ethyl 3-methyl-3-phenyl glycidate; [0190] Acyclic terpene alcohols such as B. Citronellol; geraniol; nerol; linalool; lavadulol; nerolidol; farnesol; tetrahydrolinalool; tetrahydrogeraniol; 2,6-dimethyl-7-octen-2-ol; 2,6-Dime- thyloctan-2-ol; 2-Methyl-6-methylen-7-octen-2-ol; 2,6-Dimethyl-5,7-octadien-2-ol; 2,6-Dime- thyl-3,5-octadien-2-ol; 3,7-Dimethyl-4,6-octadien-3-ol; 3,7-dimethyl-1,5,7-octatrien-3-ol 2,6- 230086 dimethyl-2,5,7-octatrien-1-ol; and their formates, acetates, propionates, isobutyrates, butyr- ates, isovalerianates, pentanoates, hexanoates, crotonates, tiglinates and 3-methyl-2-buteno- ates; [0191] Acyclic terpene aldehydes and ketones, such as B. Geranial; Neral; Citronellal; 7- hydroxy-3,7-dimethyloctanal; 7-methoxy-3,7-dimethyloctanal; 2,6,10-trimethyl-9-undecenal; Geranylacetone; and the dimethyl and diethylacetals of Geranial, Neral, 7-hydroxy-3,7-dime- thyloctanal; the cyclic terpene alcohols such as Menthol; isopulegol; alpha-terpineol; terpine- nol-4; menthan-8-ol; menthan-1-ol; menthan-7-ol; borneol; isoborneol; linalool oxide; nopol; cedrol; ambrinol; vetiverol; guaiacol; and their formates, acetates, propionates, isobutyrates, butyrates, isovalerianates, pentanoates, hexanoates, crotonates, tiglinates and 3-methyl-2-bu- tenoates; [0192] Cyclic terpene aldehydes and ketones, such asmenthone; isomenthone; 8-mercap- tomenthan-3-one; carvone; camphor; fenchone; alpha-ionone; beta-ionone; alpha-n-methylio- none; beta-n-methylionone; alpha-isomethylionone; beta-isomethylionone; alpha-irone; alpha- damascon; beta-damascon; beta-damascenone; delta-damascon; gamma-damascon; 1- (2,4,4-trimethyl-2-cyclohexen-1-yl)-2-buten-1-one; 1,3,4,6,7,8a-hexahydro-1,1,5,5-tetrame- thyl-2H-2,4a-methanonaphthalen-8(5H)-one; 2-methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl)- 2-butenal; nootkatone; dihydronootkatone; 4,6,8-megastigmatrien-3-one; alpha-sinensal; beta-sinensal; acetylated cedarwood oil (methylcedrylketone); [0193] Cyclic alcohols, such as e.g., 4-tert. butylcyclohexanol; 3,3,5-trimethylcyclohexanol; 3-isocamphylcyclohexanol; 2,6,9-trimethyl-Z2,Z5,E9-cyclododecatrien-1-ol; 2-isobutyl-4-me- thyltetrahydro-2H-pyran-4-ol; [0194] Cycloaliphatic alcohols, such as alpha,3,3-trimethylcyclohexylmethanol; 1-(4-iso- propylcyclohexyl)ethanol; 2-methyl-4-(2,2,3-trimethyl-3-cyclopent-1-yl)butanol; 2-Methyl-4- (2,2,3-trimethyl-3-cyclopent-1-yl)-2-buten-1-ol; 2-Ethyl-4-(2,2,3-trimethyl-3-cyclopent-1-yl)-2- buten-1-ol; 3-Methyl-5-(2,2,3-trimethyl-3-cyclopent-1-yl)-pentan-2-ol; 3-methyl-5-(2,2,3-trime- thyl-3-cyclopent-1-yl)-4-pentene-2-ol; 3,3-dimethyl-5-(2,2,3-trimethyl-3-cyclopent-1-yl)-4-pen- tene-2-ol; 1-(2,2,6-trimethylcyclohexyl)pentan-3-ol; 1-(2,2,6-trimethylcyclohexyl)hexan-3-ol; [0195] Cyclic and cycloaliphatic ethers, such as cineol; cedryl methyl ether; cyclododecyl methyl ether; 1,1-dimethoxycyclododecane; (ethoxymethoxy)cyclododecane; alpha-cedrene epoxide; 3a,6,6,9a-tetramethyldodecahydronaphtho[2,1-b]furan; 3a-ethyl-6,6,9a-trimethyldo- decahydronaphtho[2,1-b]furan; 1,5,9-trimethyl-13-oxabicyclo[10. 1.0]trideca-4,8-diene; rose oxide; 2-(2,4-dimethyl-3-cyclohexen-1-yl)-5-methyl-5-(1-methylpropyl)-1,3-dioxane; [0196] Cyclic and macrocyclic ketones, such as 4-tert-butylcyclohexanone; 4-tert-butylcy- clohexanone. butylcyclohexanone; 2,2,5-trimethyl-5-pentylcyclopentanone; 2-heptylcyclopen- tanone; 2-pentylcyclopentanone; 2-hydroxy-3-methyl-2-cyclopenten-1-one; 3-methyl-cis-2- penten-1-yl-2-cyclopenten-1-one; 3-methyl-2-pentyl-2-cyclopenten-1-one; 3-methyl-4-cyclo- pentadecenone; 3-methyl-5-cyclopentadecenone; 3-methylcyclopentadecanone; 4-(1-ethox- yvinyl)-3,3,5,5-tetramethylcyclohexanone; 4-tert. - pentylcyclohexanone; 5-cyclohexadecen-1- one; 6,7-dihydro-1,1,2,3,3-pentamethyl-4(5H)-indanone; 8-cyclohexadecen-1-one; 9-cyclo- heptadecen-1-one; cyclopentadecanone; cyclohexadecanone; 230086 [0197] Cycloaliphatic aldehydes, such as 2,4-dimethyl-3-cyclohexenecarbaldehyde; 2-me- thyl-4-(2,2,6-trimethyl-cyclohexen-1-yl)-2-butenal; 4-(4-hydroxy-4-methylpentyl)-3-cyclohex- enecarbaldehyde; 4-(4-methyl-3-penten-1-yl)-3-cyclohexenecarbaldehyde; [0198] Cycloaliphatic ketones, such as B.1-(3,3-Dimethylcyclohexyl)-4-penten-1-on; 2,2-Di- methyl-1-(2,4-dimethyl-3-cyclohexen-1-yl)-1-propanon; 1-(5,5-Dimethyl-1-cyclohexen-1-yl)-4- penten-1-on; 2,3,8,8-tetramethyl-1,2,3,4,5,6,7,8-octahydro-2-naphthalenyl methyl ketone; me- thyl 2,6,10-trimethyl 2,5,9-cyclododecatrienyl ketone; tert. - butyl-(2,4-dimethyl-3-cyclohexen- 1-yl) ketone; [0199] Esters of aliphatic carboxylic acids, such as (E)- and (Z)-3-hexenyl formate; ethyl acetoacetate; isoamyl acetate; hexyl acetate; 3,5,5-trimethylhexyl acetate; 3-methyl-2-butenyl acetate; (E)-2-hexenyl acetate; (E)- and (Z)-3-hexenyl acetate; octyl acetate; 3-octyl acetate; 1-octen-3-yl acetate; ethyl butyrate; butyl butyrate; isoamyl butyrate; hexyl butyrate; (E)- and (Z)-3-hexenyl isobutyrate; Hexyl crotonate; ethyl isovalerate; ethyl 2-methyl pentanoate; ethyl hexanoate; allyl hexanoate; ethyl heptanoate; allyl heptanoate; ethyl octanoate; ethyl (E,Z)- 2,4-decadienoate; methyl 2-octinate; methyl 2-noninate; allyl 2-isoamyloxy acetate; methyl 3,7- dimethyl-2,6-octadienoate; 4-methyl-2-pentyl crotonate; [0200] Esters of cyclic alcohols, such as 2-tert-butylcyclohexyl acetate; 4-tert-butylcyclo- hexyl acetate; 2-tert-pentylcyclohexyl acetate; 4-tert-pentylcyclohexyl acetate; 3,3,5-trimethyl- cyclohexyl acetate; decahydro-2-naphthyl acetate; 2-cyclopentyl cyclopentyl crotonate; 3-pen- tyl tetrahydro-2H-pyran-4-yl acetate; decahydro-2,5,5,8a-tetramethyl-2-naphthyl acetate; 4,7- methano-3a,4,5,6,7,7a-hexahydro-5, resp.6-indenyl acetate; 4,7-methano-3a,4,5,6,7,7a-hex- ahydro-5, resp.6-indenyl propionate; 4,7-methano-3a,4,5,6,7,7a-hexahydro-5, resp.6-indenyl isobutyrate; 4,7-methanooctahydro-5, or 6-indenyl acetate; [0201] Esters of cycloaliphatic alcohols, such as 1-cyclohexylethyl crotonate; [0202] Esters of cycloaliphatic carboxylic acids, such as Allyl 3-cyclohexyl propionate; allyl cyclohexyloxy acetate; cis- and trans-methyl dihydrojasmonate; cis- and trans-methyl jasmonate; methyl 2-hexyl-3-oxocyclopentane carboxylate; ethyl 2-ethyl-6,6-dimethyl-2-cyclo- hexenecarboxylate; ethyl 2,3,6,6-tetramethyl-2-cyclohexenecarboxylate; ethyl 2-methyl-1,3- dioxolane-2-acetate; [0203] Ester of araliphatic alcohols and aliphatic carboxylic acids, such as benzyl ace- tate; benzyl propionate; benzyl isobutyrate; benzyl isovalerate; 2-phenylethyl acetate; 2-phe- nylethyl propionate; 2-phenylethyl isobutyrate; 2-phenylethyl isovalerate; 1-phenylethyl ace- tate; alpha-trichloromethyl benzyl acetate; alpha,alpha-dimethylphenyl ethyl acetate; alpha,al- pha-dimethylphenyl ethyl butyrate; cinnamyl acetate; 2-phenoxyethyl isobutyrate; 4-methox- ybenzyl acetate; [0204] Heterocyclic compounds, such as B. 2,5-dimethyl-4-hydroxy-2H-furan-3-one; 2- ethyl-4-hydroxy-5-methyl-2H-furan-3-one; 3-hydroxy-2-methyl-4H-pyran-4-one; 2-ethyl-3-hy- droxy-4H-pyran-4-one; [0205] Hydrocarbons, such as 3-carene; alpha-pinene; beta-pinene; alpha-terpinene; gamma-terpinene; p-cymene; bisabolene; camphene; caryophyllene; cedrene; farnesene; 230086 limonene; longifolene; myrcene; ocimene; valencene; (E,Z)-1,3,5-undecatriene; styrene; di- phenylmethane; the aliphatic alcohols such as Hexanol; Octanol; 3-octanol; 2,6-dimethylhep- tanol; 2-methyl-2-heptanol; 2-methyl-2-octanol; (E)-2-hexenol; (E)- and (Z)-3-hexenol; 1-oc- ten-3-ol; mixture of 3,4,5,6,6-pentamethyl-3/4-hepten-2-ol and 3,5,6,6-tetramethyl-4-meth- yleneheptan-2-ol; (E,Z)-2,6-nonadienol; 3,7-dimethyl-7-methoxyoctan-2-ol; 9-decenol; 10-un- decenol; 4-methyl-3-decen-5-ol; [0206] Lactones, such as 1,4-octanolide; 3-methyl-1,4-octanolide; 1,4-nonanolide; 1,4- decanolide; 8-decen-1,4-olide; 1,4-undecanolide; 1,4-dodecanolide; 1,5-decanolide; 1,5-do- decanolide; 4-methyl-1,4-decanolide; 1,15-pentadecanolide; cis- and trans-11-pentadecen- 1,15-olide; cis- and trans-12-pentadecene-1,15-olide; 1,16-hexadecanolide; 9-hexadecene- 1,16-olide; 10-oxa-1,16-hexadecanolide; 11-oxa-1,16-hexadecanolide; 12-oxa-1,16-hexa- decanolide; ethylene-1,12-dodecanedioate; ethylene-1,13-tridecanedioate; coumarin; 2,3-di- hydrocoumarin; octahydrocoumarin. [0207] Phenols, phenyl ethers and phenyl esters, such as Tarragol; anethole; eugenol; eu- genyl methyl ether; isoeugenol; isoeugenyl methyl ether; thymol; carvacrol; diphenyl ether; beta-naphthyl methyl ether; beta-naphthyl ethyl ether; beta-naphthyl isobutyl ether; 1,4-di- methoxybenzene; eugenyl acetate; 2-methoxy-4-methylphenol; 2-ethoxy-5-(1-propenyl)phe- nol; p-cresylphenyl acetate; [0208] Nitrogen-containing aromatic compounds, such as B.2,4,6-Trinitro-1,3-dimethyl-5- tert.- butylbenzene; 3,5-dinitro-2,6-dimethyl-4-tert-butyl acetophenone; cinnamic acid nitrile; 3- methyl-5-phenyl-2-pentenoic acid nitrile; 3-methyl-5-phenylpentanoic acid nitrile; I; methyl an- thranilate; methyl N-methyl anthranilate; Schiff bases of methyl anthranilate with 7-hydroxy- 3,7-dimethyloctanal, 2-methyl-3-(4-tert.- butylphenyl)propanal or 2,4-dimethyl-3-cyclohex- enecarbaldehyde; 6-isopropylquinoline; 6-isobutylquinoline; 6-sec. butylquinoline; 2-(3-phe- nylpropyl)pyridine; indole; scatole; 2-methoxy-3-isopropylpyrazine; 2-isobutyl-3-methoxypyra- zine; [0209] Dyes [0210] Suitable dyes are any of the substances suitable and approved for cosmetic purposes as listed, for example, in the publication “Kosmetische Färbemittel” of the Farbstoffkommis- sion der Deutschen Forschungsgemeinschaft, Verlag Chemie, Weinheim, 1984, pages 81 to 106. Examples include cochineal red A (C.I.16255), patent blue V (C.I.42051), indigotin (C.I. 73015), chlorophyllin (C.I. 75810), quinoline yellow (C.I. 47005), titanium dioxide (C.I. 77891), indanthrene blue RS (C.I.69800) and madder lake (C.I.58000). Luminol may also be present as a luminescent dye. Advantageous coloured pigments are for example titanium dioxide, mica, iron oxides (e.g. Fe2O3 Fe3O4, FeO(OH)) and/or tin oxide. Advantageous dyes are for example carmine, Berlin blue, chromium oxide green, ultramarine blue and/or manga- nese violet. [0211] Preparations [0212] Preferred compositions according to the present inventions are selected from the group of products for treatment, protecting, care and cleansing of the skin and/or hair or as a make- 230086 up product, preferably as a leave-on product (meaning that the one or more compounds stay on the skin and/or hair for a longer period of time, compared to rinse-off products). [0213] The formulations according to the invention are preferably in the form of an emulsion, e.g. W/O (water-in-oil), O/W (oil-in-water), W/O/W (water-in-oil-in-water), O/W/O (oil-in-water- in-oil) emulsion, PIT emulsion, Pickering emulsion, emulsion with a low oil content, micro- or nanoemulsion, a solution, e.g. in oil (fatty oils or fatty acid esters, in particular C6-C32 fatty acid C2-C30 esters) or silicone oil, dispersion, suspension, creme, lotion or milk, depending on the production method and ingredients, a gel (including hydrogel, hydrodispersion gel, oleogel), spray (e.g. pump spray or spray with propellant) or a foam or an impregnating solution for cosmetic wipes, a detergent, e.g. soap, synthetic detergent, liquid washing, shower and bath preparation, bath product (capsule, oil, tablet, salt, bath salt, soap, etc.), effervescent prepara- tion, a skin care product such as e.g. an emulsion (as described above), ointment, paste, gel (as described above), oil, balsam, serum, powder (e.g. face powder, body powder), eau de perfume, eau de toilette, after-shave, a mask, a pencil, stick, roll-on, pump, aerosol (foaming, non-foaming or post-foaming), a deodorant and/or antiperspirant, mouthwash and mouth rinse, a foot care product (including keratolytic, deodorant), an insect repellent, a sunscreen, after- sun preparation, a shaving product, aftershave balm, pre- and aftershave lotion, a depilatory agent, a hair care product such as e.g. shampoo (including 2-in-1 shampoo, anti-dandruff shampoo, baby shampoo, shampoo for dry scalps, concentrated shampoo), conditioner, hair tonic, hair water, hair rinse, styling creme, pomade, perm and setting lotion, hair spray, styling aid (e.g. gel or wax), hair smoothing agent (detangling agent, relaxer), hair dye such as e.g. temporary direct-dyeing hair dye, semi-permanent hair dye, permanent hair dye, hair condi- tioner, hair mousse, eye care product, make-up, make-up remover or baby product. [0214] Auxiliary substances and additives can be included in quantities of 5 to 99 wt.-%, pref- erably 10 to 80 wt.-%, based on the total weight of the formulation. The amounts of cosmetic or dermatological auxiliary agents and additives and perfume to be used in each case can easily be determined by the person skilled in the art by simple trial and error, depending on the nature of the particular product. [0215] The preparations can also contain water in a quantity of up to 99 wt.-%, preferably from about 5 to about 80 wt.-% and more preferably either from about 10 to about 50 or from about 60 to about 80 wt.-% based on the total weight of the preparation. INDUSTRIAL APPLICATION [0216] As outlined above, adding a composition of at least one 1,2-alkanediol and at least one alkyl benzyl alcohol, in particular of a ternary composition comprising 1,2-hexanediol, 1,2-oc- tanediol and 4-methyl benzyl alcohol, to a cosmetic base, preferably a sun care composition, and providing mineral sunscreen pigments such as for example zinc oxide in high amounts of from 1 to about 30 wt.-%, results in an improved antimicrobial stability and an increased pro- tection against color degradation and phase separation. In the following embodiments, the amounts of compounds are calculated based on the overall cosmetic compositions. 230086 [0217] Therefore, another object is related to a method for preserving a cosmetic composition, and/or a method for stabilizing a cosmetic composition comprising at least one mineral sun- screen pigment against yellowing and/or phase separation, comprising or consisting of the following steps: (i) providing a cosmetic base; (ii) providing at least one mineral sunscreen pigment, preferably in an amount of about 1 to about 30 wt.-%, more preferably in an amount of about 5 to about 28 wt.-%, most preferably in an amount of about 10 to about 25 wt.-%; and (ii) adding at least one 1,2-alkanediol, preferably two alkanediols, preferably 1,2-hex- anediol and/or 1,2-octanediol, preferably in an amount of about 0.1 to about 10 wt.-%, more preferably in an amount of about 0.5 to about 2 wt.-%, most preferably in an amount of about 1 to about 5 wt.-% and at least one alkyl benzol alcohol, preferably 4-methyl benzyl alcohol, preferably in an amount of about 0.1 to about 10 wt.-%, more preferably in an amount of about 0.5 to about 2 wt.-%, most preferably in an amount of about 1 to about 5 wt.-%. Optionally, the overall cosmetic composition may also comprise a non-mineral sun protection filter and/or other suitable additives. [0218] Another object of the present invention covers the use of a composition comprising or consisting of - at least one 1,2-alkanediol with 5 to 12 carbon atoms, preferably at least two 1,2-alkanediols each independently with 5 to 12 carbon atoms, - at least one alkyl benzyl alcohol, preferably 4-methyl benzyl alcohol, and optionally - at least one solvent for preserving cosmetic compositions comprising mineral sunscreen pigments, preferably pre- sent in amounts of from about 1 to about 30 wt.-% and/or stabilizing such cosmetic composi- tions against yellowing and/or phase separation. Optionally, the composition may also com- prise a non-mineral sun protection filter and/or other suitable additives. [0219] For the sake of good order, it is emphasized that any preferred embodiment, such as for example preferred combinations, ranges or conditions, disclosed above and associated with specific compositions or compositions count also for the methods and uses as defined above. Any repetition is therefore superfluous. BRIEF DESCRIPTION OF DRAWINGS [0220] Fig.1 shows the results of the preservation test for Example 1. The PET results meet Ph. Eur. Criteria A. [0221] Fig. 2 shows the results of the preservation test for Comparative Example C1. The formulation failed the PET according to Ph. Eur. 230086 [0222] Fig. 3 shows the results of the preservation test for Comparative Example C2. The formulation failed the PET according to Ph. Eur. [0223] Fig. 4 shows the results of the preservation test for Comparative Example C3. The formulation failed the PET according to Ph. Eur. [0224] Fig.5 shows the results of the preservation test for Comparative Example C4. The PET results meet Ph. Eur. Criteria A. [0225] Fig.6 shows the results of the preservation test for Comparative Example C5. The PET results meet Ph. Eur. Criteria B. [0226] Fig.7 shows the results of the stability test for Comparative Example C3 after 1 month. From left to right, the vials were stored at 5 °C, room temperature (dark), room temperature (light), 40 °C and 50 °C. [0227] Fig.8 shows the results of the stability test for Comparative Example C3 after 3 months. From left to right, the vials were stored at 5 °C, room temperature (dark), room temperature (light), 40 °C and 50 °C. [0228] Fig.9 shows the results of the stability test for Comparative Example C4 after 1 month. From left to right, the vials were stored at 5 °C, room temperature (dark), room temperature (light), 40 °C and 50 °C. [0229] Fig. 10 shows the results of the stability test for Comparative Example C4 after 3 months. From left to right, the vials were stored at 5 °C, room temperature (dark), room tem- perature (light), 40 °C and 50 °C. [0230] Fig.11 shows the results of the stability test for Comparative Example C5 after 1 month. From left to right, the vials were stored at 5 °C, room temperature (dark), room temperature (light), 40 °C and 50 °C. [0231] Fig. 12 shows the results of the stability test for Comparative Example C5 after 3 months. From left to right, the vials were stored at 5 °C, room temperature (dark), room tem- perature (light), 40 °C and 50 °C.
230086 EXAMPLES [0232] Example 1, Comparative Examples C1 to C5 [0233] For the tests for adequate preservation and formulation stability, different samples of O/W emulsions of zinc oxide were prepared. The formulations are compiled in Tables 1 and 2. Example 1 is according to the invention, Examples C1 to C5 serve for comparison. Table 1 Formulations of ZnO OW emulsions tested for preservation and stability wt.-% Material Phase Material name EU INCI 1 C1 C2 A Dub® SE 15 P Sucrose Palmitate 3.50 3.50 3.50 Dub® SE 3 S Sucrose Tristearate 1.00 1.00 1.00 SymEffect SUN Cera Alba, Sodium 3.00 3.00 3.00 Stearoyl Lactylate Cutina® GMS V Glyceryl Stearate 1.25 1.25 1.25 Vitamin E Acetate Tococpheryl Acetate 0.50 0.50 0.50 Neutral Oil Caprylic / Capric 5.00 5.00 5.00 Triglyceride SymMollient® Propanediol 8.00 8.00 8.00 PDCC Dicaprylate/Caprate SymMollient® S Cetearyl Nonanoate 5.00 5.00 5.00 Green Dispeersum DSP- Polyhydroxystearic Acid 1.00 1.00 1.00 OL 100 B ZnO-GP-11S5 Zinc Oxide (nano), 23.68 23.68 23.68 (nano) Triethoxycaprylylsilane ZnO-C-11S2 Zinc Oxide, 2.55 2.55 2.55 Triethoxycaprylylsilane C Keltrol® CG - V Xanthan Gum 0.25 0.25 0.25 D Water dem. Aqua 39.87 41.77 38.77 Glycerin 99,5% Glycerin 3.00 3.00 3.00 Eumulgin® SG Sodium Steaoryl 0.20 0.20 0.20 Glutamate Sodium Gluconate Sodium Gluconate 0.20 0.20 0.20 1,3-Propanediol Propanediol 1.00 - 3.00 nat. SymTriol Caprylyl Glycol, 1,2- 1.00 - - Hexanediol, Methylbenzyl Alcohol CHA Caprylhydroxamic acid - 0.10 0.10 Total 100.00 100.00 100.00 230086 Table 2 Formulations of ZnO OW emulsions tested for preservation and stability wt.-% Material Phase Material name EU INCI C3 C4 C5 A Dub® SE 15 P Sucrose Palmitate 3.50 3.50 3.50 Sisterna® SP 10-C Sucrose Polystearate 1.00 1.00 1.00 Cutina® GMS V Glyceryl Stearate 1.25 1.25 1.25 Vitamin E Acetate Tococpheryl Acetate 0.50 0.50 0.50 Neutral Oil Caprylic / Capric 5.00 5.00 5.00 Triglyceride SymMollient® Propanediol 10.00 10.00 10.00 PDCC Dicaprylate/Caprate SymMollient® S Cetearyl Nonanoate 5.00 5.00 5.00 Green Dispeersum DSP- Polyhydroxystearic Acid 1.00 1.00 1.00 OL 100 B Neo Heliopan® ZnO Zinc Oxide (nano), 23.68 23.68 23.68 40 (102569) Triethoxycaprylylsilane Neo Heliopan® ZnO Zinc Oxide, 2.55 2.55 2.55 300 (102590) Triethoxycaprylylsilane Keltrol® CG - V Xanthan Gum 0.25 0.25 0.25 C Water dem. Aqua 42.07 41.07 42.07 Glycerin 99,5% Glycerin 3.00 3.00 3.00 Eumulgin® SG Sodium Steaoryl 0.20 0.20 0.20 Glutamate Sodium Gluconate Sodium Gluconate 0.20 0.20 0.20 SymSave H Hydroxyacetophenone 0.50 0.50 0.50 Hydrolite® 7 1,2-Heptanediol 0.30 0.30 - 1,3-Propanediol Propanediol - 1.00 - nat. SymDiol® 68 1,2-Hexanediol, Caprylyl - - 0.30 Glycol Total 100.00 100.00 100.00 [0234] Example 1 and comparative examples C1 and C2 were prepared using the following protocol. Phase A was heated to 85 °C and then phase B was added to phase A and homog- enized over 10 minutes using an Ultra Turrax® T25 stirrer with a stirring speed of 8000 rpm. For the last 30 seconds of homogenization, phase C was added to the hot phase A/B. Phase D was mixed and the ingredients were dissolved at room temperature, if necessary, the mixture was slightly heated. The pH value of the mixture was checked at room temperature and needs to be 7.0, afterwards phase D was added to phase A/B/C and homogenized using an Ultra Turrax® T25 stirrer with a stirring speed of 13000 rpm (1min/100g). While stirring the mixture was cooled down to ambient temperature and homogenized again. Afterwards another short stirring was necessary using an Ultra Turrax® T25 stirrer with a stirring speed of 13000rpm 230086 (1min/100g). Finally, the pH value was checked and typically has a value of 7.5 to 8. Im- portantly, the pH must be larger than 7. In case of comparative example C1 and C2, caprylhy- droxamic acid (CHA) needed to be pre-solubilized in glycerin or in glycerin and propanediol, which required heating to about 50 °C. The premixed CHA was then added at the post emul- sification stage. [0235] Comparative examples C3 to C5 were prepared using the following protocol. Phase A was heated to 80 °C and then ZnO was added to phase A and homogenized over 10 minutes using an Ultra Turrax® T25 stirrer with a stirring speed of 10000 rpm. During the last 30 sec- onds of homogenization, Keltrol® was added. Phase C was mixed and the ingredients were dissolved at room temperature, if necessary, the mixture was slightly heated. The pH value of the mixture was checked at room temperature and needs to be 7.0 or higher. If necessary, the pH was adjusted to 7 using Biotive® L-Arginine. Phase C was heated to 80 °C and then added to phase A/B and homogenized using an Ultra Turrax® T25 stirrer with a stirring speed of 13000rpm (1min/100g). While stirring the mixture was cooled down to ambient temperature and homogenized again for 1 minute using an Ultra Turrax® T25 stirrer with a stirring speed of 13000rpm. Afterwards another short stirring was necessary. Finally, the pH value was checked and typically has a value of 7.5 to 8. Importantly, the pH must be larger than 7. [0236] All sunscreen composition formulations described in Tables 1 and 2 were sent to QACS Ltd. for a Preservation Efficacy Test. The PET was performed, following European Pharmaco- poeia, to evaluate the efficacy of antimicrobial systems against 5 microorganisms: Escherichia coli (ATCC 8739), Pseudomonas aeruginosa (ATCC 9027), Staphylococcus aureus (ATCC 6538) Candida albicans (ATCC 10231), Aspergillus brasiliensis (ATCC 16404). The results of the PET tests are depicted in Figures 1 to 6 and summarized in Table 3. [0237] As summarized in Table 3, Example 1 passed the preservation test and fulfilled the European Pharmacopoeia Criteria A (see Figure 1). In contrast, comparative examples C1 to C3 failed the preservation test (see Figures 2 and 3). In comparison to Example 1, C1 and C2 did not contain 4-methyl benzyl alcohol, which was added to the formulation in form of the commercially available liquid mixture SymTriol. In addition, C1 did not contain 1,3-propanediol, whereas this compound formed part of Example 1 and C2. SymTriol additionally contains 1,2- hexanediol and 1,2-octanediol, so that the general impact of 1,2-alkanediols was separately checked with C3 to C5. Formulation C3 only contained a small amount of 1,2-heptanediol and failed the preservation test (see Figure 4). In C4, 1,3-propanediol was additionally present resulting in a successful preservation which fulfilled the Eur. Ph. criteria A (see Figure 5). The result was slightly worse for C5, which contained only a small amount of 1,2-hexanediol and 1,2-octanediol instead of 1,2-heptanediol and 1,3-propanediol. Accordingly, C5 only achieved the Eur. Ph. B criteria (see Figure 6). Overall, summarizing the preservation tests, it becomes clear that for a sufficient preservation of a mineral sunscreen composition, a methyl benzyl alcohol and/or a combination of at least two alkanediols is advantageous, preferably in con- junction with 1,3-propanediol. [0238] For all formulations of Table 1 and 2 stability tests were performed to evaluate if the formulations are stable regarding phase separation and/or discoloration. The samples were tested under different conditions, i.e. varying storage temperatures (5 °C, room temperature, 230086 40 °C and 50 °C) and varying presence of light. The results are summarized in Table 3. Se- lected results for the Comparative Example C3 to C5 are also depicted in Figures 7 to 12. [0239] As summarized in Table 3, only Example 1 passed the stability test. For comparative examples C1 and C2, the stability tests were stopped after it was clear that C1 and C2 do not show satisfying preservation properties. For the other samples C3 to C5, the stability tests were failed since these formulations exhibited a discoloration and/or phase separation during storage (see Figures 7 to 12). Thus, in summary, sufficient stability was advantageously achieved, if the mineral sunscreen composition contained 4-methylbenzyl alcohol, 1,2-hex- anediol and 1,2-octanediol together with 1,3-propanediol. [0240] The results summarized in Table 3 clearly show that Example 1, representing a sun- screen composition according to the invention passes both the preservation test and the sta- bility test. In contrast, the comparative examples C2 to C5 fail the PET test and/or the stability test. Thus, the formulation according to the invention is capable of stabilizing high levels of a mineral sunscreen pigment, such as zinc oxide, against both microbial contamination and sam- ple degradation. [0241] Table 3 Results of PET and stability tests for formulations of ZnO OW emulsions Example/Comparative Exam- Result of PET test Result of stability test ple 1 Ph. Eur. A stable C1 failed test stopped after failed PET C2 failed test stopped after failed PET C3 failed unstable C4 Ph. Eur. A unstable C5 Ph. Eur. B unstable
230086 [0242] Formulation examples [0243] Formulation examples for cosmetic compositions based on sunscreen compositions comprising high amounts of zinc oxide are compiled in Tables F1 to F5. Table F1 Cosmetic sun protection composition (amounts in wt.-%) Ingredient Amount Zinc oxide 25.0 Polyglyceryl dimer soyate 0.80 Sorbitane stearate 1.00 Tocopheryl acetate 0.50 Glyceryl stearate. PEG-100 Stearate 3.00 PEG-40. hydrogenated castor oil 1.00 Butyrospermum parkii (Shea Butter) 1.00 C12-15 alkyl benzoate 6.50 Butylene glycol 5.00 Xanthan gum 0.30 Disodium EDTA 0.10 Allantoin 0.10 Polyacrylamide. C13-14 Isoparaffin. Laureth-7 1.00 4-t Butylcyclohexanol 1.00 1,2-Hexandiol/1,2-Octanediol (1:1) 1.00 4-Methyl benzyl alcohol 0.50 Preservatives (Methyl-. Butyl-. Ethyl-. Propylparaben. Phenoxyethanol) 0.30 Aqua dem. Ad 100
230086 Table F2 Sun protection spray (amounts in wt.-%) Ingredients INCI Amount Glycerol Glycerol 4.00 1.3 butylene glycol Butylene glycol 5.00 D-Panthenol Panthenol 0.50 Lara Care A-200 Galactoarabinan 0.25 Baysilone oil M 10 Dimethicone 1.00 Edeta BD Disodium EDTA 0.10 Copherol 1250 Tocopheryl acetate 0.50 Cetiol OE Dicaprylyl ether 3.00 Alpha Bisabolol Bisabolol 0.10 Pemulen TR-2 Acrylates/C10-30 alkyl acrylate crosspolymer 0.25 NaOH.10% Sodium hydroxide 0.60 Hydrolite® 5 1,2-pentanediol 0.20 Phenoxyethanol Phenoxyethanol 0.40 Solbrol M Methylparaben 0.10 Solbrol P Propylparaben 0.10 Neo Heliopan® ZnO 40 Zinc oxide 22.50 SymTriol® 1,2-Hexandiol/1,2-Octanediol/4-Methyl benzyl alcohol 1.00 Aqua dem. Water Ad 100
230086 Table F3 Sunscreen spray O/W. SPE 15-20 (amounts in wt.-%) Ingredients INCI Amount Dracorin® GOC Glyceryl Oleate Citrate. Caprylic/Capric Triglyceride 2.00 Corapan® TQ Diethylhexyl 2.6-Naphthalate 3.00 Neo Heliopan® ZnO 40 Zinc oxide 20.00 Neo Heliopan® OS Ethylhexyl Salicylate 5.00 Neo Heliopan® 357 Butyl Methoxydibenzoylmethane 3.00 Isoadipate Diisopropyl Adipate 6.00 Baysilone® Oil M10 Dimethicone 1.00 Edeta® BD Disodium EDTA 0.10 Vitamin E Acetate Tocopheryl Acetate 0.50 Dragosantol® 100 Bisabolol 0.10 Pemulen® TR-2 Acrylates/C10-30 Alkyl Acrylate Crosspolymer 0.25 Glycerol 99.5 P. Glycerol 4.00 Butylene Glycol Butylene Glycol 5.00 SymTriol® 1,2-Hexandiol/1,2-Octanediol/4-Methyl benzyl alcohol 1.00 Biotive® L-Arginine Arginine 0.55 Sobrol M Methylparaben 0.30 Aqua dem. Water Ad 100
230086 Table F4 Sun protection soft cream (W/O). SPF 40 (amounts in wt.-%) Ingredients INCI Amount Dehymuls PGPH Polyglyceryl-2 dipolyhydroxystearate 5.00 Copherol 1250 Tocopheryl acetate 0.50 Permulgin 3220 Ozocerite 0.50 Tegosoft TN C12-15 Alkyl benzoate 10.00 Neo Heliopan® ZnO 300 Zinc oxide 20.00 Neo Heliopan® E1000 Isoamyl-p-methoxycinnamate 2.00 Neo Heliopan® 303 Octocrylene 2.00 Neo Heliopan® MBC 4-Methylbenzylidene camphor 3.00 SymTriol® 1,2-Hexandiol/1,2-Octanediol/4-Methyl benzyl alcohol 1.00 EDETA BD Disodium EDTA 0.10 Glycerol Glycerol 4.00 Magnesium sulfate Magnesium sulfate 0.50 Aqua dem. Water Ad 100
230086 Table F5 Sun protection milk (W/O) (amounts in wt.-%) Ingredients INCI Amount Dehymuls PGPH Polyglyceryl-2 dipolyhydroxystearate 3.00 Beeswax 8100 Beeswax 1.00 Monomuls 90-0-18 Glyceryl oleate 1.00 Zinc stearate Zinc stearate 1.00 Cetiol SN Cetearyl isononanoate 5.00 Cetiol OE Dicaprylyl ether 5.00 Tegosoft® TN C12-15 alkyl benzoate 4.00 Vitamin E Tocopherol 0.50 Neo Heliopan® OS Ethylhexyl salicylate 5.00 Neo Heliopan® AV Ethylhexyl methoxycinnamate 2.50 Uvinul ^ T150 Ethylhexyl triazone 1.50 Neo Heliopan® ZnO 300 Zinc oxide 20.00 Trilon BD Disodium EDTA 0.10 Glycerol Glycerol 5.00 SymTriol® 1,2-Hexandiol/1,2-Octanediol/4-Methyl benzyl alcohol 1.00 Alpha bisabolol Bisabolol 0.10 SymOcide® PT Phenoxyethanol. Tropolone 0.25 Aqua dem. Water Ad 100

Claims

230086 Claims 1. A sunscreen composition comprising or consisting of: (a) at least one mineral sunscreen pigment, (b) at least one alkyl benzyl alcohol, (c) optionally at least one non-mineral sun protection filter (d) and optionally at least one solvent, 2. The composition of Claim 1, wherein said mineral sunscreen pigment is zinc oxide or nano zinc oxide. 3. The composition of Claim 1 or 2, wherein said alkyl benzyl alcohol is 4-methyl benzyl alcohol. 4. The composition of any of the preceding Claims 1 to 3, wherein said non-mineral sun protection filters are UV-protection filters, preferably selected from the group consisting of UVA filters, UVB filters, broadband filters and mixtures thereof. 5. The composition of any of the preceding Claims 1 to 4, wherein said solvent is a 1,2-, 1,3- or a 2,3-alkanediol with 2 to 4 carbon atoms. 6. The composition of any of the preceding Claims 1 to 5, further comprising as a component (e) at least one 1,2-alkanediol, preferably two or more 1,2-alkanediols, each independently with 5 to 12 carbon atoms, wherein said 1,2-alkanediol(s) is/are independently selected from the group consisting of 1,2-pentanediol, 1,2-hexanediol, 1,2-heptanediol, 1,2-octanediol, 1,2-nonanediol, 1,2-decanediol, 1,2-undecanediol and 1,2-dodecanediol. 7. The composition of any of the preceding Claims 1 to 6, further comprising an emulsifier, preferably a non-ionic emulsifier, or an emollient. 8. The composition of any of the preceding Claims 1 to 7, comprising or consisting of (a) zinc oxide or nano zinc oxide, (b) 4-methyl benzyl alcohol, (c) optionally at least one non-mineral sun protection filter, (d) optionally 1,2-propanediol or 1,3-propanediol, 230086 (e) and optionally 1,2-hexanediol and/or 1,2-octanediol. 9. The composition of any of the preceding Claims 1 to 8, comprising or consisting of (a) about 10 to about 50 wt.-% of a mineral sunscreen pigment, preferably zinc oxide or nano zinc oxide, (b) about 0.1 to about 5 wt.-% of an alkyl benzyl alcohol, preferably 4-methyl benzyl alcohol, (c) optionally at least one non-mineral sun protection filter, (d) optionally at least one solvent, and (e) optionally about 0.1 to about 5 wt.-% of at least one 1,2-alkanediol with 5 to 12 carbon atoms. 10. A cosmetic composition comprising: (i) a cosmetic base (ii) the sunscreen composition of any of Claims 1 to 9 wherein the at least one mineral sunscreen pigment is present in an amount of from 1 to 35 wt.-%, wherein the at least one alkyl benzyl alcohol is present in an amount of from 0.1 to 5 wt.-%, and wherein the at least one alkanediol e) is present in an amount of from 0.1 to 5 wt.- %, all wt.-% values based on the weight of the overall cosmetic composition. 11. The cosmetic composition of Claim 10 as a skin care, a personal care, a hair care or a sun care composition. 12. A method for preserving a cosmetic composition, and/or a method for stabilizing a cosmetic composition comprising at least one mineral sunscreen pigment against yellowing and/or phase separation, comprising or consisting of the following steps: (i) providing a cosmetic base, (ii) providing at least one mineral sunscreen pigment; and (iii) adding at least one 1,2-alkanediol as described in claim 6, and at least one alkyl benzyl alcohol, preferably 4-methyl benzyl alcohol. 13. The use of a composition comprising or consisting of - at least one 1,2-alkanediol with 5 to 12 carbon atoms, 230086 - at least one alkyl benzyl alcohol, preferably 4-methyl benzyl alcohol, - and optionally at least one solvent, for preserving cosmetic compositions comprising mineral sunscreen pigments and/or stabilizing such cosmetic compositions against yellowing and/or phase separation.
PCT/EP2023/072864 2023-08-18 2023-08-18 A sunscreen composition WO2025040241A1 (en)

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