Abstract: The present invention relates to a fluid composition intended for protecting the skin and/or hair against ultraviolet radiation, characterized by the fact that it comprises, in a cosmetically acceptable aqueous support, at least: (a) one photoprotective system capable of screening out UV radiation; and (b) one 2-alkoxy-4-alkyl ketone phenol compound. The present invention also relates to the use of a 2-alkoxy-4-alkyl ketone phenol compound in a composition comprising, in a cosmetically acceptable medium, at least one photoprotective system capable of screening out UV radiation.

Abstract: The invention relates to a cosmetic, pharmaceutical, dermatological, nutraceutical or oral cosmetic composition having, as main preserving system, a mild preserving system formed from compounds with a broad antimicrobial spectrum, which have only one pKa, the said pKa being greater than or equal to 10, the said mild preserving system being present in a content strictly greater than or equal to 1% by weight relative to the weight of the said composition.

Abstract: The present invention relates to a fluid composition intended for protecting the skin and/or hair against ultraviolet radiation, characterized by the fact that it comprises, in a cosmetically acceptable aqueous support, at least: (a) one photoprotective system capable of screening out UV radiation; and (b) one 2-alkoxy-4-alkyl ketone phenol compound. The present invention also relates to the use of a 2-alkoxy-4-alkyl ketone phenol compound in a composition comprising, in a cosmetically acceptable medium, at least one photoprotective system capable of screening out UV radiation.

Abstract: The present invention relates to the use, as active ingredient, in cosmetic compositions or for the preparation of pharmaceutical compositions, of an effective quantity of at least one compound free of carbohydrate units, modifying the physicochemical properties of the surface of the skin and/or of the mucous membranes, so as to prevent or reduce the adhesion of microorganisms to the skin and/or the mucous membranes, chosen so that the decimal logarithm of the mean number of viable bacteria adhering to the epidermis, after a test consisting in bringing the said epidermis into contact with the test compound for 2 hours at 37° C., is at least 0.3 less than that obtained by a test carried out with water under the same conditions.

Abstract: The present invention relates to the use, as active ingredient, in cosmetic compositions or for the preparation of pharmaceutical compositions, of an effective quantity of at least one compound free of carbohydrate units, modifying the physicochemical properties of the surface of the skin and/or of the mucous membranes, so as to prevent or reduce the adhesion of microorganisms to the skin and/or the mucous membranes, chosen so that the decimal logarithm of the mean number of viable bacteria adhering to the epidermis, after a test consisting in bringing the said epidermis into contact with the test compound for 2 hours at 37° C., is at least 0.3 less than that obtained by a test carried out with water under the same conditions.

Abstract: The present invention relates to the use, as active ingredient, in a cosmetic composition or for the preparation of a pharmaceutical composition, of an effective quantity of at least one fatty substance free of carbohydrate units, having a melting point of less than 35° C. and having an interfacial tension of between 6 and 27 mN/m, modifying the physicochemical properties of the surface of the skin and/or of the mucous membranes so as to prevent or reduce the adhesion of microorganisms to the latter.