Skin treatment composition

A - Human Necessities – 61 – K

Patent

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Details

A61K 8/68 (2006.01)

Patent

CA 2665552

The invention discloses skin treatment compositions consisting essentially of a mixture of ceramides, cholesterol, free fatty acids - the mixture being able to mimic skin identical lamellar structures - and nonionic emulsifiers. These compositions are liquid and pumpable at room temperature which means that they can be incorporated easily into cosmetic formulations with no need for heating. Furthermore, the skin treatment compositions allow the stable inclusion of long-chain ceramides into oil-in-water emulsions as well as into water-in-oil emulsions. Inclusion of short chain ceramides that can act as dermatological regulators did not affect the lamellar lipid organization. The skin treatment compositions are claimed as well as their use in cosmetic and dermatological formulations.

La présente invention concerne des compositions de traitement cutané qui consistent essentiellement en un mélange de céramides, de cholestérol, d'acides gras libres - le mélange étant capable d'imiter des structures lamellaires identiques à la peau - et des émulsifiants non ioniques. Ces compositions sont liquides et peuvent être pompées à la température ambiante, ce qui signifie qu'elles peuvent être incorporées aisément dans des formulations cosmétiques sans qu'il soit nécessaire de chauffer. En outre, les compositions de traitement cutané permettent l'inclusion stable de céramides à chaînes longues dans des émulsions d'huile dans l'eau de même que dans des émulsions d'eau dans l'huile. L'inclusion de céramides à chaînes courtes qui peuvent agir en tant que régulateurs dermatologiques n'a pas affecté l'organisation des lipides lamellaires. Les revendications concernent les compositions de traitement cutané ainsi que leur utilisation dans des formulations cosmétiques et dermatologiques.

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