WO2000010511A1 - Utilisation d'emulsions stables concentrees eau dans huile pour la liberation percutanee controlee d'un principe actif - Google Patents
Utilisation d'emulsions stables concentrees eau dans huile pour la liberation percutanee controlee d'un principe actif Download PDFInfo
- Publication number
- WO2000010511A1 WO2000010511A1 PCT/FR1999/002009 FR9902009W WO0010511A1 WO 2000010511 A1 WO2000010511 A1 WO 2000010511A1 FR 9902009 W FR9902009 W FR 9902009W WO 0010511 A1 WO0010511 A1 WO 0010511A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- active principle
- emulsion
- use according
- phase
- advantageously
- Prior art date
Links
- 239000000839 emulsion Substances 0.000 title claims abstract description 54
- 239000007762 w/o emulsion Substances 0.000 claims abstract description 11
- 230000002035 prolonged effect Effects 0.000 claims abstract description 8
- RYYVLZVUVIJVGH-UHFFFAOYSA-N caffeine Chemical group CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 claims description 54
- LPHGQDQBBGAPDZ-UHFFFAOYSA-N Isocaffeine Natural products CN1C(=O)N(C)C(=O)C2=C1N(C)C=N2 LPHGQDQBBGAPDZ-UHFFFAOYSA-N 0.000 claims description 27
- 229960001948 caffeine Drugs 0.000 claims description 27
- VJEONQKOZGKCAK-UHFFFAOYSA-N caffeine Natural products CN1C(=O)N(C)C(=O)C2=C1C=CN2C VJEONQKOZGKCAK-UHFFFAOYSA-N 0.000 claims description 27
- 239000012071 phase Substances 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 12
- 239000004480 active ingredient Substances 0.000 claims description 10
- 239000002537 cosmetic Substances 0.000 claims description 8
- 239000008346 aqueous phase Substances 0.000 claims description 6
- 239000005662 Paraffin oil Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000002480 mineral oil Substances 0.000 claims description 2
- 235000010446 mineral oil Nutrition 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 claims description 2
- 230000001225 therapeutic effect Effects 0.000 claims 1
- 210000003491 skin Anatomy 0.000 description 22
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- 230000035515 penetration Effects 0.000 description 7
- BANXPJUEBPWEOT-UHFFFAOYSA-N 2-methyl-Pentadecane Chemical compound CCCCCCCCCCCCCC(C)C BANXPJUEBPWEOT-UHFFFAOYSA-N 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 6
- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 description 6
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 6
- 235000019198 oils Nutrition 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- CUNWUEBNSZSNRX-RKGWDQTMSA-N (2r,3r,4r,5s)-hexane-1,2,3,4,5,6-hexol;(z)-octadec-9-enoic acid Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO.OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO.CCCCCCCC\C=C/CCCCCCCC(O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O CUNWUEBNSZSNRX-RKGWDQTMSA-N 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- JYGXADMDTFJGBT-VWUMJDOOSA-N hydrocortisone Chemical compound O=C1CC[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 JYGXADMDTFJGBT-VWUMJDOOSA-N 0.000 description 4
- 229960005078 sorbitan sesquioleate Drugs 0.000 description 4
- 229940043268 2,2,4,4,6,8,8-heptamethylnonane Drugs 0.000 description 3
- 229940085262 cetyl dimethicone Drugs 0.000 description 3
- 239000003995 emulsifying agent Substances 0.000 description 3
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 235000011187 glycerol Nutrition 0.000 description 3
- KUVMKLCGXIYSNH-UHFFFAOYSA-N isopentadecane Natural products CCCCCCCCCCCCC(C)C KUVMKLCGXIYSNH-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 235000019341 magnesium sulphate Nutrition 0.000 description 3
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 description 3
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 description 3
- 229960002216 methylparaben Drugs 0.000 description 3
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 3
- 229960004889 salicylic acid Drugs 0.000 description 3
- 239000004334 sorbic acid Substances 0.000 description 3
- 235000010199 sorbic acid Nutrition 0.000 description 3
- 229940075582 sorbic acid Drugs 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 210000004207 dermis Anatomy 0.000 description 2
- 210000002615 epidermis Anatomy 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- -1 fatty acid esters Chemical class 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 229960000890 hydrocortisone Drugs 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- VOXZDWNPVJITMN-ZBRFXRBCSA-N 17β-estradiol Chemical compound OC1=CC=C2[C@H]3CC[C@](C)([C@H](CC4)O)[C@@H]4[C@@H]3CCC2=C1 VOXZDWNPVJITMN-ZBRFXRBCSA-N 0.000 description 1
- 208000002874 Acne Vulgaris Diseases 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 208000035484 Cellulite Diseases 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000004909 Moisturizer Substances 0.000 description 1
- 208000005141 Otitis Diseases 0.000 description 1
- 206010049752 Peau d'orange Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 206010000496 acne Diseases 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000036232 cellulite Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 208000019258 ear infection Diseases 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000001493 electron microscopy Methods 0.000 description 1
- 229960005309 estradiol Drugs 0.000 description 1
- 229930182833 estradiol Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 229960005150 glycerol Drugs 0.000 description 1
- 230000036074 healthy skin Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- AKRQHOWXVSDJEF-UHFFFAOYSA-N heptane-1-sulfonic acid Chemical compound CCCCCCCS(O)(=O)=O AKRQHOWXVSDJEF-UHFFFAOYSA-N 0.000 description 1
- 239000003906 humectant Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229940119170 jojoba wax Drugs 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 229960003390 magnesium sulfate Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001333 moisturizer Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000008363 phosphate buffer Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 210000004003 subcutaneous fat Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000699 topical effect Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
- A61K8/064—Water-in-oil emulsions, e.g. Water-in-silicone emulsions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
-
- 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
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
- A61K8/494—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with more than one nitrogen as the only hetero atom
- A61K8/4953—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with more than one nitrogen as the only hetero atom containing pyrimidine ring derivatives, e.g. minoxidil
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
Definitions
- the invention relates to water-in-oil stable emulsions with a high percentage in internal phase which can be used in the cosmetic and pharmaceutical fields for the controlled administration through the skin of an active principle.
- the concentrated W / O emulsions can be subjected to repeated shear stresses without degrading them, as long as the critical shear point is not reached, this being however high enough to allow completely normal pumping and treatments. ;
- FR-2 258 165 describes emulsions with a high percentage in internal phase, of the water in oil or oil in water type, having the property of forming adherent films on the surface of the skin or the hair.
- This document recommends their use in cosmetics, in particular in sun lotions, moisturizers, hair emulsions, sun creams.
- hydrocortisone creams are described in particular for treating ear infections in animals or also based on benzoyl peroxide and colloidal sulfur for the treatment of acne.
- a subject of the invention is therefore the use of a stable water-in-oil emulsion, in which the dispersed phase constitutes more than 74%, advantageously at least approximately 80%, preferably approximately 90% by volume relative to the total volume of the emulsion as a vehicle for the prolonged percutaneous release of an active principle.
- the oily phase comprises the oil proper as well as the emulsifying agent.
- the concentrated W / O emulsions of the invention are particularly useful for the release through the skin of an active ingredient soluble or sparingly soluble in the aqueous phase.
- This active ingredient can be cosmetic in nature, a particularly preferred active ingredient being caffeine.
- This active principle can also be of a pharmaceutical nature. Mention may in particular be made of estradiol and hydrocortisone.
- the emulsions according to the invention are prepared in a manner known per se by mixing the aqueous phase in the oily phase. It is possible to use any of the oily substances compatible with the skin known from the state of the art.
- the oily phase can thus consist of a mineral oil, such as a paraffin oil, a vegetable oil such as a jojoba oil, or a silicone oil.
- the emulsion is produced by slow addition of the internal phase to the external phase with continuous stirring, cold.
- Any type of suitable emulsifying agent can be used. Mention may in particular be made of nonionic surfactants such as sorbitan and fatty acid esters, in particular sorbitan sesquioleate, and silicones, in particular cetyl dimethicone copolyol.
- the amount of emulsifying agent is advantageously at least 0.5%, advantageously at least 2%, preferably at least 3%, by weight relative to the total weight of the emulsion.
- the amount of active principle contained in the aqueous phase is at least 0.001%, advantageously at least 0.01%, preferably at least 0.1% and more preferably at least 2% and up to 20% or more by weight, relative to the total weight of the emulsion.
- the concentrated W / O emulsions of the invention may contain other ingredients authorized by law, in particular preservatives, electrolytes, pH adapters, buffers, antioxidants, perfumes, humectants and others.
- the stable W / O concentrated emulsions of the invention are suitable for prolonged and continuous release through the skin of an active principle for a period of at least 12 hours, advantageously at least 24 hours.
- the active principle is caffeine they allow a constant and continuous release for a period of at least 24 hours, with kinetics of order 0, after single application.
- a subject of the invention is also a slimming composition
- a slimming composition comprising, as active principle, caffeine in a concentrated stable water-in-oil emulsion as defined above.
- Caffeine is advantageously included in a concentration of at least 1%, preferably at least 3% by weight, more particularly around 5% by weight relative to the total weight of the emulsion.
- the subject of the invention is also a method for the continuous and prolonged administration of an active principle, in particular a water-soluble active principle through the skin, in particular human skin, consisting of:
- a stable water-in-oil emulsion having a dispersed (internal) phase consisting of more than 74%, advantageously at least 80%, preferably approximately 90% by volume relative to the total volume of the emulsion;
- the amount of composition to be applied to the skin is at least 2 mg / cm 2 , advantageously 2.5 mg / cm 2 , preferably 3.0 mg / cm 2 of skin.
- the composition according to the invention is applied in a conventional manner by massaging to facilitate penetration.
- a preferred composition contains caffeine as an active ingredient and is intended for the treatment of cellulite.
- An emulsion is prepared having an aqueous internal phase of 90% (w / w), the continuous phase of which is a paraffin oil.
- the composition of the emulsion is as follows:
- the glycerin, magnesium sulfate, methylparaben, sorbic acid and water are mixed and heated to 80 ° C. until the compounds are dissolved.
- the aqueous phase is added dropwise to the oily phase with stirring.
- the emulsions of Examples 1 and 2 were tested for their stability at temperature over time. Four temperatures were used: -20 ° C, 4 ° C, 42 ° C and 50 ° C. The emulsions were allowed to return to room temperature at defined time intervals (1, 8, 15 days and 1, 2, 3 and 6 months) and their stability was analyzed by observation with the naked eye of the phase separation of the emulsion. With identical time intervals, the apparent viscosity (Brookfield, U.S.A.) was measured at room temperature. The droplet size distribution was determined by laser diffractometry using a Malvern Mastersizer ⁇ plus ® device (Malvern Instruments, England).
- a high resolution cryogenic electron microscope (VG Polaron LT7 400 SEM, XL.40 FEG) was also used to obtain images of the emulsions.
- the samples were frozen in liquid nitrogen, broken at 100 ° K, covered with 4 nm of platinum and observed at 100 ° K.
- the emulsions of Examples 1 and 2 show good stability under the various storage conditions and show no signs of instability, except at 50 ° C. for the emulsion of Example 1, after 15 days of storage. However, this emulsion remained stable after storage at 42 ° C for 3 months, which is proof of good stability under normal conditions of storage. These results make it possible to predict good stability of the emulsions for storage periods of at least 36 months. Analyzes by electron microscopy showed that the emulsions consist of polyhedral domains of water surrounded by thin envelopes of surfactant and oil. The two emulsions are highly polydispersed, the emulsion of example 2 being more polydispersed than that of example 1. Table 1 below represents the percentage distribution of the droplet size two days after their manufacture.
- Percutaneous absorption was measured on human skin obtained after a breast reduction operation. After the operation, the skin was thoroughly washed in water and the subcutaneous fat was removed. Before use, the skin was cut to a thickness of 350 ⁇ m using a dermatome. Penetration through the skin was measured using static diffusion Franz cells (donor surface 1.76 cm 2 , receptor volume 6.5 ml). The preparations were applied at doses of 2.31 ⁇ 0.19 mg / cm 2 for the emulsion of example 1, 2.06 ⁇ 0.32 mg / cm 2 for the emulsion of example 2 and 2.40 ⁇ 0.12 mg / cm 2 for a commercial preparation containing 5% by weight of caffeine, the vehicle of which is a hydroalcoholic gel.
- the receiving liquid was an isotonic phosphate buffer pH 7.4 constantly stirred (300 rpm) and maintained at 32 ° C.
- the skin segment was left to return to equilibrium with the receiving phase for 2 hours before loading each donor compartment with the formulations.
- Six time intervals following application were studied (0.25 hours, 3 hours, 6 hours, 9 hours, 12 hours and 24 hours).
- 1.2 ml of the samples from the recipient phase were removed and each example removed was replaced with an equal volume of fresh recipient phase using an automated system (Microette, Hansen Research Corporation, USA). After 24 hours, the skin surface was washed with 1 ml of a MeOH / H 2 O 50/50 mixture and the excess liquid was absorbed on cotton swabs.
- the skin was removed from the cell and the epidermis and dermis were separated by heating with a dryer. Hair for 30 seconds.
- the caffeine was extracted by washing each compartment of skin with MeOH / H 2 O 50/50 for 24 hours.
- the solutions were filtered through a 0.45 ⁇ m filter and injected into an HPLC device. The dissemination experiment was carried out in triplicate for each vehicle.
- a linear standard curve was constructed using different concentrations of caffeine in the range of 2.0 to 50 mg / liter, and the unknown concentrations were determined using the standard curve as a reference.
- the analyzes were carried out on an HPLC system equipped with a pump (Beckman 110B), a UN detector. (Jasco UV-975) at 273 nm, an integrator (Merck D-2500), an injector (Merck AS-200A), an RP-18 column and a guard column (Lichrosorb 5 column ⁇ m 250 x 4 mm, Lichrospher RP-18E guard column, Merck).
- the separation was carried out at room temperature using a 34/66 methanol / aqueous solution of 7.5 mM heptanesulfonic acid containing 1% glacial acetic acid.
- the flow rate was 0.9 ml / min and the injection volume 20 ⁇ l.
- the vehicle based on hydroalcoholic gel does not make it possible to obtain a constant release of caffeine as a function of time. On the contrary, it shows a high speed during the first six hours which then drops significantly.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Dermatology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Cosmetics (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99936753A EP1104279A1 (fr) | 1998-08-20 | 1999-08-18 | Utilisation d'emulsions stables concentrees eau dans huile pour la liberation percutanee controlee d'un principe actif |
AU51740/99A AU5174099A (en) | 1998-08-20 | 1999-08-18 | Use of stable concentrated water-in-oil emulsions for controlled transcutaneous release of an active principle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9810588A FR2782453B1 (fr) | 1998-08-20 | 1998-08-20 | Utilisation d'emulsions stables concentrees eau dans huile pour la liberation percutanee controlee d'un principe actif |
FR98/10588 | 1998-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000010511A1 true WO2000010511A1 (fr) | 2000-03-02 |
Family
ID=9529800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1999/002009 WO2000010511A1 (fr) | 1998-08-20 | 1999-08-18 | Utilisation d'emulsions stables concentrees eau dans huile pour la liberation percutanee controlee d'un principe actif |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1104279A1 (fr) |
AU (1) | AU5174099A (fr) |
FR (1) | FR2782453B1 (fr) |
WO (1) | WO2000010511A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2997297A1 (fr) * | 2012-10-31 | 2014-05-02 | Caseosa Cosmetics | Emulsion concentree eau dans huile et son utilisation pour le traitement de desordres cutanes cosmetiques ou dermatologiques |
WO2024256601A1 (fr) * | 2023-06-16 | 2024-12-19 | Calyxia | Emulsions simples |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0009404A2 (fr) * | 1978-09-22 | 1980-04-02 | Unilever Plc | Emulsions eau-dans-l'huile et procédé pour leur préparation |
US5523090A (en) * | 1995-02-24 | 1996-06-04 | Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. | Skin treatment composition |
FR2758724A1 (fr) * | 1997-01-24 | 1998-07-31 | Javenech | Composition topique a base de protamine pour le traitement de la cellulite et des surcharges ponderales |
-
1998
- 1998-08-20 FR FR9810588A patent/FR2782453B1/fr not_active Expired - Fee Related
-
1999
- 1999-08-18 AU AU51740/99A patent/AU5174099A/en not_active Abandoned
- 1999-08-18 WO PCT/FR1999/002009 patent/WO2000010511A1/fr not_active Application Discontinuation
- 1999-08-18 EP EP99936753A patent/EP1104279A1/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0009404A2 (fr) * | 1978-09-22 | 1980-04-02 | Unilever Plc | Emulsions eau-dans-l'huile et procédé pour leur préparation |
US5523090A (en) * | 1995-02-24 | 1996-06-04 | Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. | Skin treatment composition |
FR2758724A1 (fr) * | 1997-01-24 | 1998-07-31 | Javenech | Composition topique a base de protamine pour le traitement de la cellulite et des surcharges ponderales |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2997297A1 (fr) * | 2012-10-31 | 2014-05-02 | Caseosa Cosmetics | Emulsion concentree eau dans huile et son utilisation pour le traitement de desordres cutanes cosmetiques ou dermatologiques |
WO2024256601A1 (fr) * | 2023-06-16 | 2024-12-19 | Calyxia | Emulsions simples |
Also Published As
Publication number | Publication date |
---|---|
FR2782453A1 (fr) | 2000-02-25 |
FR2782453B1 (fr) | 2001-12-14 |
EP1104279A1 (fr) | 2001-06-06 |
AU5174099A (en) | 2000-03-14 |
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