L'oreal

Carole Guiramand

Francine Baldo

Gilles Rubinstenn

Karl Boutelet

Laure Fageon

Susanne Dreher

Jean-Thierry Simonnet

Raluca Lorant

Odile Aubrun-Sonneville

Pascal Richart

Mathieu Chabrillangeas

Véronique Chevalier

Cyril Chevalier

Aurelia Gohier

Dominique Caplain

Marie-Lise Chiron

Vanessa Duffet

Nathalie Boileau

Léonora Henault-mezaize

Sandrine Therouin-Koely

Aurélia Gohier

Cosmetic emulsion containing a gemini surfactant and a lipophilic polymer The invention relates to a composition in the form of an emulsion, in particular in the form of an oil-in-water emulsion, comprising a gemini surfactant having a specific chemical structure with at least two fatty amide groups and at least one lipophilic polymer comprising at least hydroxyethyl acrylate units and acrylate units bearing a lipophilic group, wherein the weight ratio of the sum of all the hydroxyethyl acrylate units to the sum of all the acrylate units bearing a lipophilic group ranges from 1:30 to 1:1 and wherein the lipophilic polymer has a number-average molecular weight Mn ranging from 2000 to 9000 g/mol. The composition in accordance with the invention makes it possible to obtain a cosmetic emulsion having an increased sun protection factor, while at the same time having good cosmetic properties, such as a non-greasy and non-tacky feel, while at the same time being stable, in particular from the physicochemical viewpoint.

Cosmetic emulsion containing a gemini surfactant and a lipophilic polymer

Emulsion comprising an anionic acrylic copolymer and a lipophilic polymer A subject of the present invention is a composition in the form of an emulsion, preferably in the form of an oil-in-water emulsion, comprising at least one hydrophilic gelling polymer chosen from anionic acrylic copolymers and at least one lipophilic polymer comprising at least hydroxyethyl acrylate units and acrylate units bearing a lipophilic group, wherein the weight ratio of the sum of all the hydroxyethyl acrylate units to the sum of all the acrylate units bearing a lipophilic group ranges from 1:30 to 1:1 and wherein the lipophilic polymer has a number-average molecular weight Mn ranging from 2000 to 9000 g/mol. The composition in accordance with the invention makes it possible to obtain emulsions which are homogeneous (the emulsion is macroscopically smooth and has no grains, after storage in a pot for 24 hours at ambient temperature (25&#xb0; C.)), which have a variable viscosity (very fluid to very thick), which are stable over time, and which have good sensory properties, in particular which are non-tacky, non-shiny and non-greasy on the skin.

Emulsion comprising an anionic acrylic copolymer and a lipophilic polymer

The present invention relates to a composition preferably useful for topical application containing, or in the form of, a fine oil-in-water emulsion, to the process for preparing it and to its use especially for treating, caring for, making up and/or cleansing the skin, the integuments (hair, eyelashes or nails) and/or mucous membranes. In a preferred embodiment the invention emulsion is obtained without the input of energy. The composition may especially be a cosmetic and/or dermatological composition.

Water oil-in-water emulsion

The present invention relates to an anhydrous fluid composition comprising, in a cosmetically acceptable medium: The present invention also relates to the use of the said composition in the manufacture of products for the cosmetic treatment of the skin, nails, hair, eyelashes, eyebrows and/or scalp, in particular care products, sun protection products, makeup products or scenting products.

Oleo-alcoholic anhydrous fluid screening composition comprising a lipophilic polyamide polycondensate

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

A composition comprising, in a physiologically acceptable medium, at least one sapogenin and a solubilizing system comprising: (a) at least one non-emulsifying ester of a fatty acid and/or of a fatty alcohol whose hydrocarbon-based chain contains at least 8 carbon atoms, or a plant oil, and (b) at least one branched fatty alcohol whose hydrocarbon-based chain contains at least 8 carbon atoms and/or at least one lipophilic UV screening agent. The solubilizing system according to the invention makes it possible to dissolve a sufficient amount of sapogenin, without recrystallization, for a period of time which is acceptable for cosmetic or dermatological use.

Composition containing sapogenin

Composition containing at least one bicyclic aromatic compound and at least one lipophilic sunscreen, and uses thereof

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Jouy en Josas, France

Carole Guiramand