Classifications

• • 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
  • 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
  • A61K8/29—Titanium; 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
  • A61K8/58—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing atoms other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur or phosphorus
  • A61K8/585—Organosilicon compounds

Definitions

• the present invention belongs to the cosmetic field and relates to a tinted sunscreen composition.
• a beautiful and attractive appearance is a desire for many people.
• One typical sign of such an appearance is a healthy and smooth looking skin. Therefore, in order to take care of the skin, it is for many people a daily routine to apply cosmetic products such as body lotions, sunscreens or deodorant compositions.
• compositions containing UV-filters are commonly used to protect the skin from the ultraviolet (UV) radiation of the sunlight.
• UV ultraviolet
• long term damage such as an increased risk of skin cancer occurs in case of excessive irradiation with light from the UV-B range (wavelength: 280-320 nm).
• the excessive exposure of UV-B and UV-A radiation also leads to a weakening of the elastic and collagen fibers of the connective tissue. This leads to numerous photo-toxic and photo- allergic reactions and results in premature skin ageing.
• UV-A and UV-B filters are grouped in the most developed countries in the form of positive lists. Accordingly, substances which are UV- A and UV-B filters are those listed in the Annex VI of the Regulation (EC) No 1223/2009 of the European Parliament and of the Council.
• Cosmetic composition comprising UV-A and UV-B filters are commonly known by the person skilled in art.
• One special kind of those are pigmented sunscreen compositions.
• Those compositions contain colored organic or inorganic pigments, which are not titanium dioxide and zinc oxide, which allow for a balancing off the color shades of the skin. Accordingly, by applying such a composition the skin is protected from UV rays and a more even skin tone is obtained.
• Typical sunscreens comprising colored organic and/or inorganic pigments are disclosed in WO 2007068700 Aland US 20110033400 A1.
• SPF Sun protection factor
• cosmetic sunscreen compositions comprising make-up pigments, which do not suffer the disadvantages described above. It is particularly desirable to provide cosmetic sunscreen composition comprising UV-filter and make-up pigments, which have a long lasting matte appearance on the skin, in particular with sebum, have no oily sensory on the skin, allow a good and strong adherence of make-up pigments on the skin and/or avoid color changing of the composition itself on the skin, especially if exposed to humid and/or warm weather conditions.
• the invention is a cosmetic composition
• a cosmetic composition comprising a) at least one organic UV-filter, b) at least one inorganic pigment, and c) in addition silica cetyl silylate.
• a further aspect of the invention is the use of the cosmetic composition of the invention to provide a matte skin appearance, in particular if the skin is exposed to light after application of the composition. It is preferred if the light is infrared light.
• the terms ..according to the invention”, “preferred according to the invention” and so on are always directed to the use according to the invention, to the method according to the invention and to the cosmetic composition according to the invention.
• normal conditions refers to 20°C, 1013 hPa and a relative humidity of 50%.
• skin refers solely to human skin.
• silica cetyl silylate is not considered as pigment.
• the composition is characterized in that at least one organic UV-filter is contained.
• UV-filter is understood as a substance which is listed in the UV-A and UV-B filter list in the Annex VI of the Regulation (EC) No 1223/2009 of the European Parliament and of the Council.
• organic UV-filter is understood as an UV-filter, which is substantially based on an organic molecule. Accordingly, e.g. titanium dioxide does not fall in the definition of an organic UV-filter.
• the composition comprises at least one water-soluble organic UV-filter.
• Embodiments of the present invention which are advantageous according to the invention are characterized in that the total amount of water-soluble organic UV-filters in the preparation is from 0.1 to 18% by weight, more preferably 0.5 to 8% by weight and most preferably from 0.8% to 3% by weight, based on the total weight of the composition.
• sulfonic acid salts are used as water-soluble organic UV-filters. These include phenylbenzimidazole sulfonic acid, terephthalylidene dicamphor sulfonic acid, benzophenone-4, benzophenone-5, disodium phenyl dibenzimidazole tetrasulfonate.
• the water-soluble organic UV-filters are preferably selected from the group of the compounds phenylbenzimidazole sulfonic acid and disodium phenyl dibenzimidazole tetrasulfonate.
• phenylbenzimidazole sulfonic acid is particularly preferred according to the invention.
• the preferred use concentration for phenylbenzimidazole sulfonic acid is from 0.5 to 3% by weight and preferably from 0.55 to 2.8% by weight, based on the total weight of the composition.
• composition comprises at least one organic UV-filter, which is selected from the group consisting of camphor benzalkonium methosulfate, homosalate, benzophenone-3, butyl methoxydibenzoylmethane, benzylidene camphor sulfonic acid, octocrylene, polyacrylamidomethyl benzylidene camphor, ethylhexyl methoxycinnamate, peg-25 paba, isoamyl p-methoxycinnamate, ethylhexyl triazone, drometrizole trisiloxane, diethylhexyl butamido triazone, 4-methylbenzylidene camphor, ethylhexyl salicylate, ethylhexyl dimethyl paba, methylene bis-benzotriazolyl tetramethylbutylphenol, methylene bis-benzotriazo
• the composition comprises bis-ethylhexyloxyphenol methoxyphenyl triazine, whereby the total quantity of bis-ethylhexyloxyphenol methoxyphenyl triazine is preferably in the range from 0.5 to 12% by weight, preferably 0.6 to 6% by weight, particularly preferably 0.7 to 3.5% by weight based on the total weight of composition.
• the composition comprises ethylhexyl salicylate, whereby the total quantity of ethylhexyl salicylate is preferably in the range from 0.5 to 12% by weight, preferably 2 to 9% by weight, particularly preferably 3 to 7.5% by weight based on the total weight of composition. It is further preferred if the composition comprises ethylhexyl triazone, whereby the total quantity of ethylhexyl triazone is preferably in the range from 0.1 to 5% by weight, preferably 0.2 to 3% by weight, particularly preferably 0.3 to 1.5% by weight based on the total weight of composition.
• the composition comprises butyl methoxydibenzoylmethane, whereby the total quantity of butyl methoxydibenzoylmethane is preferably in the range from 0.5 to 12% by weight, preferably 0.6 to 6% by weight, particularly preferably 0.7 to 2.5% by weight based on the total weight of composition.
• the total quantity of all organic UV-filters is in the range from 5 to 18% by weight, more preferably 7 to 15% by weight and most preferably 8.5 to 12.5% by weight, calculated to the total weight of the composition. This considerably high quantities of organic UV-filters ensure that a high SPF factor is achieved allowing the product to be used on facial skin, which is exposed extensively to UV radiation.
• composition of the invention is free from octocrylene. That means the content of octocrylene is preferably 0% by weight based on the total weight of the composition.
• the composition of the invention comprises at least one inorganic pigment, in particular metal oxides. Accordingly, the composition comprises preferably at least one inorganic pigment, which is preferably a metal pigments, in particular preferred metal oxides.
• Particularly advantageous inorganic pigments are oxides of titanium (T1O2), zinc (ZnO), iron (eg Fe 2 C> 3 ), zirconium (ZrC>2), manganese (eg MnO), aluminum (AI 2 O 3 ), cerium (eg Ce 2 C> 3 ), mixed oxides of the corresponding metals and mixtures of such oxides, as well as the sulfate of barium (BaSCU).
• the composition comprises at least oxides of titanium and iron.
• the total quantity of the inorganic pigments is preferably in the range 2 to 14% by weight, more preferably 4 to 13% by weight and most preferably 5 to 11.5% by weight, calculated to the total weight of the composition.
• the total quantity of the metal pigments is preferably in the range 2 to 14% by weight, more preferably 4% to 12.5% by weight and most preferably 6 to 11% by weight, calculated to the total weight of the composition.
• the total quantity of the inorganic pigments, which are metal oxides, is preferably in the range 2 to 14% by weight, more preferably 4% to 12.5% by weight and most preferably 6 to 11% by weight, calculated to the total weight of the composition.
• titanium dioxide is contained.
• the total quantity of titanium dioxide is in the range from 3.5 to 8.8% by weight, calculated to the total weight of the composition.
• iron oxide is contained.
• the total quantity of iron oxide is in the range from 0.1 to 4% by weight, more preferably 0.2 to 3% by weight and most preferably 0.5 to 2% by weight, calculated to the total weight of the composition.
• the composition comprises silica cetyl silylate.
• Silica cetyl silylate can commercially be obtained under the tradename AEROSIL R 816 from Evonik.
• silica cetyl silylate is contained and the total quantity of silica cetyl silylate is in the range from 0.1 to 6% by weight, more preferably from 0.25 to 4% by weight and most preferably from 0.5 to 3% by weight, calculated to the total weight of the composition.
• the composition according to the invention is characterized in that the composition is a pickering emulsion.
• a pickering emulsion is an emulsion that is stabilized by solid particles, which adsorb onto the interface between the two phases of an emulsion, meaning an oil and an aqueous phase.
• the silica cetyl silylate allows for such a stabilization.
• the pickering emulsion of the present invention is characterized in that it is an oil in water emulsion.
• the composition does comprise emulsifiers and surfactants in quantity of less than 2% by weight, more preferably less than 1% by weight, more preferably less than 0.5% by weight and most preferably 0% by weight. Accordingly, it is most preferred if the composition does not comprise an emulsifier and/or a surfactant.
• composition does not comprise any additional emulsifier and/or surfactants.
• the compositions comprises low amounts of emulsifier. Accordingly, it is preferred if the composition comprises 0.1 to 0.95% by weight of at least one emulsifier, calculated to the total weight of the composition.
• the composition comprises at least glyceryl stearate as emulsifier.
• Emulsifiers are understood to be all substances which are listed in the International Cosmetic Ingredient Dictionary and Handbook, Thirteenth Edition 2010, (ISBN 1-882621-47-6) under the name "emulsifying agent”.
• Surfactants are understood to be all substances which are listed in the International Cosmetic Ingredient Dictionary and Handbook, Thirteenth Edition 2010, (ISBN 1-882621-47-6) under the name "surfactant”.
• composition according to the invention comprises Chondrus Crispus Extract.
• composition comprises Chondrus Crispus Extract in a total quantity ranging from 0.1 to 0.5% by weight, calculated to the total weight of the composition.
• compositions according to the invention are further characterized in that the composition comprises at least one further oil, which is not an organic UV-filter.
• the total quantity of the oils which are not an UV-filter is in the range from 2 to 12% by weight, more preferably 2.5 to 10% by weight and most preferably 3 to 8% by weight, calculated to the total weight of the composition.
• Preferred oils according to the invention are selected from esters of the linear or branched saturated or unsaturated fatty alcohols having 2-30 carbon atoms with linear or branched saturated or unsaturated fatty acids having 2-30 carbon atoms, which may be hydroxylated, whereby the ester is liquid under normal conditions.
• oils hexyldecyl stearate (Eutanol ® G 16 S), hexyldecyl laurate, isodecyl neopentanoate, isononyl isononanoate, 2-ethylhexyl palmitate (Cegesoft ® C 24), cetearyl isononanoate, isoamyl laurate, isopropyl myristate, C12-15 alkyl benzoate and 2-ethylhexyl stearate (Cetiol ® 868). Particular preferred are C12-15 alkyl benzoate, isoamyl laurate, and/or cetearyl isononanoate.
• Preferred examples are soya oil, cotton seed oil, sunflower oil, palm oil, palm kernel oil, linseed oil, almond oil, castor oil, corn oil, olive oil, rapeseed oil, sesame oil, thistle oil, wheat germ oil, avocado oil, peach kernel oil and/or the liquid fractions of coconut oil.
• the cosmetic composition is characterized in that cetearyl isononanoate is contained, it is further preferred if the total quantity of cetearyl isononanoate is in the range from 1 to 9.8% by weight, more preferably 1.5 to 6.8% by weight and most preferably 2 to 5.5% by weight, calculated to the total weight of the composition.
• the cosmetic composition is characterized in that isoamyl laurate is contained, it is further preferred if the total quantity of isoamyl laurate is in the range from 0.5 to 12% by weight, more preferably 1 to 10% by weight and most preferably 1.5 to 8% by weight, calculated to the total weight of the composition.
• the cosmetic composition is characterized in that triisostearin is contained, it is further preferred if the total quantity of triisostearin is in the range from 0.5 to 9.8% by weight, more preferably 1 to 6.8% by weight and most preferably 2 to 5.5% by weight, calculated to the total weight of the composition.
• the cosmetic composition is characterized in that dicaprylyl carbonate is contained, it is further preferred if the total quantity of dicaprylyl carbonate is in the range from 0.5 to 9.8% by weight, more preferably 1 to 6.8% by weight and most preferably 2 to 5.5% by weight, calculated to the total weight of the composition.
• the cosmetic composition is characterized in that butylene glycol dicaprylate/dicaprate is contained, it is further preferred if the total quantity of butylene glycol dicaprylate/dicaprate is in the range from 0.5 to 9.8% by weight, more preferably 1 to 6.8% by weight and most preferably 2 to 5.5% by weight, calculated to the total weight of the composition.
• the cosmetic composition is characterized in that C12-15 alkyl benzoate is contained, it is further preferred if the total quantity of C12-15 alkyl benzoate is in the range from 0.5 to 9.8% by weight, more preferably 1.0 to 6.8% by weight and most preferably 2.0 to 5.5% by weight, calculated to the total weight of the composition.
• the cosmetic composition is characterized in that caprylic/capric triglyceride is contained, it is further preferred if the total quantity of caprylic/capric triglyceride is in the range from 0.5 to 9.8% by weight, more preferably 1.0 to 6.8% by weight and most preferably 2.0 to 5.5% by weight, calculated to the total weight of the composition.
• the composition comprises at least one polysaccharide gum.
• Preferred polysaccharide gums are selected from the group consisting of xanthan gum, succinoglycan gum and sclerotium gum.
• the composition according to the invention comprises at least one polysaccharide gum, in particular xanthan gum, succinoglycan gum and/or sclerotium gum
• the total quantity of the polysaccharide gum in particular the total quantity of xanthan gum, succinoglycan gum and/or sclerotium gum
• Most preferred is the use of xanthan gum in the composition.
• compositions according to the invention are preferably characterized in that the composition comprise hydroxypropyl starch phosphate and/or hydroxypropyl methyl cellulose. If hydroxypropyl starch phosphate and/or hydroxypropylmethyl cellulose are contained, it is preferred if the total quantity of hydroxypropyl starch phosphate and/or hydroxypropylmethyl cellulose is in the range from 0.5 to 4% by weight, more preferably 0.9 to 2.5% by weight, based on the total weight of the composition.
• compositions do not contain a homo- or copolymer of acrylic acid.
• formulations are particular environmentally friendly as they rely on plant derived ingredients to set up the rheological profile of the composition.
• compositions comprise a homo- or copolymer of acrylic acid.
• Preferred polymers are carbomer and/or Acrylates/C 10- 30 alkyl acrylate copolymer. If at least one homo- or copolymer of acrylic acid is contained, it is preferred if the total quantity of those polymers is in the range from 0.1 to 0.5% by weight, calculated to the total weight of the composition.
• compositions according to the invention are characterized in that the compositions do comprise hydroxyacetophenone, ethylhexylglycerin, phenoxyethanol.
• the total quantity of hydroxyacetophenone is preferable in the range from 0.05 to 0.4% by weight, calculated to the total weight of the composition.
• the total quantity of ethylhexylglycerin is preferable in the range from 0.05 to 0.8% by weight, calculated to the total weight of the composition.
• the total quantity of phenoxyethanol is preferable in the range from 0.1 to 1.0% by weight, calculated to the total weight of the composition.
• the composition comprises at least one moisturizer selected from the group consisting of glycerol and methylpropanediol.
• the total quantity of both is in the range from 2 to14% by weight, more preferably 3 to 12% and most preferably 5 to 10% by weight calculated to the total weight of the composition.
• glycerol is contained in a total quantity from 4 to 10% by weight, more preferably from 4.5 to 7.5% by weight, calculated to the total weight of the composition.
• silica is contained in a quantity of less than 0.3% by weight, more preferably less than 0.2% by weight and most preferably less than 0.15% by weight, calculated to the total weight of the composition.
• composition according to the invention does not comprise particles consisting of silica. It is further preferred if the composition does not comprise silica dimethyl silylate.
• the composition comprises at least one wax compound.
• a wax compound is contained it is preferred of the total quantities of the wax compounds is in the range from 0.1 to 4% by weight, calculated to the total weight of the composition.
• Preferred wax compounds which can be contained in the composition of the invention, are selected from the group of natural waxes and hydrogenated waxes. Preferred are hydrogenated rapeseed oil and sunflower wax.
• the composition comprises at least one fatty alcohol having 14 to 22 carbon atoms.
• Preferred fatty alcohols are stearyl alcohol, cetyl alcohol and mixtures thereof, known under the INCI designation cetearyl alcohol.
• cetearyl alcohol For the case that at least one fatty alcohol having 14 to 22 carbon atoms is contained, it is preferred if the total quantity of those is in the range from 0.1 to 1.5% by weight, calculated to the total weight of the composition.
• compositions of the invention may further comprise active ingredients which can have a beneficial aspect for the human skin.
• active ingredients are Glycyrrhetinic acid, arctiin, folic acid, coenzyme Q10 (ubiquinone), alpha-glucosylrutin, carnitine, carnosine, caffeine, natural and / or synthetic isoflavonoids, glycerylglucose, creatine, creatinine, taurine, tocopherol, tocopherol acetate, vitamin C, vitamin C phosphate, vitamin C palmitate, niacinamides, vitamin A palmitate, retinol, panthenol, glycyrrhiza inflata root extract, licochalcon A, 4-butylresorcinol, N - [(2,4-dihydroxyphenyl) thiazol-2-yl] isobutyramide, honociol and magnolol (also as a component of Magnolia- Extracts
• Ex.1 and Ex.2 are examples according to the invention, while Com.1 and Com.2 are comparative example.
• composition of the invention allowed for a more matte appearance. Especially after exposure to IR radiation. Furthermore, no color change was observed for the example according to the invention. It is obvious that other kind of silica particle do not have the beneficial effects.

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• Health & Medical Sciences (AREA)
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• 2020
  • 2020-06-23 EP EP20734695.8A patent/EP4167933A1/de not_active Withdrawn
  • 2020-06-23 WO PCT/EP2020/067416 patent/WO2021259454A1/en unknown

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