L'oreal

Pascal Richart

Jean-Thierry Simonnet

Alain J Ribier

Rose-Marie J Handjani

Bruno Biatry

Carole Guiramand

Véronique Chevalier

Dominique Caplain

The invention relates to a process for dissolving at least one compound of low solubility in water, the said process comprising the essential step of mixing the compound of low solubility with at least one lipophilic amino acid derivative. The invention also relates to a cosmetic or dermatological composition comprising, in a physiologically acceptable medium, at least one compound of low solubility and at least one lipophilic amino acid derivative. Among the compounds of low solubility that are especially included are aminophenol derivatives, salicylic acid derivatives, 2-amino-4-alkylaminopyrimidine 3-oxide derivatives and DHEA, and also its chemical or metabolic derivatives and precursors.

Compositions comprising a compound of low solubility and a lipophilic amino acid derivative, uses thereof and process for dissolving a compound of low solubility

Nanocapsules based on poly(alkylene adipate), process for their preparation and cosmetic or dermatological compositions containing them

Nanocapsules based on dendritic polymers

Composition providing a lasting cosmetic and/or pharmaceutical treatment

The present invention relates to nanoparticles, and in particular nanocapsules, provided with a lamellar coating obtained from a silicone surfactant, and to their use in a composition, in particular a topical composition, for treatment of the skin, mucosae, nails, scalp and/or hair.

Nanoparticles coated with a lamellar phase based on silicone surfactant

A composition containing, in a suitable carrier, nanoparticles of one or more nonbiodegradable polymer(s) encapsulating an oily phase which contains at least one active oil and/or at least one carrier oil and/or at least one active ingredient in an active oil and/or a carrier oil. At least one active ingredient is chosen from those with prolonged cosmetic and/or pharmaceutical activity. The nanocapsules have a size of 100-1000 nm.

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Paris, France

Pascal Richart