Abstract: A cosmetic or dermatological composition with a depigmenting action comprises derivatives of 2,5-dihydroxyphenylcarboxylic acids, their homologs, and their salts, with the derivatives having the following structural formula: ##STR1## wherein: R.sub.1 represents OR.sub.5, OH, or ##STR2## R.sub.5 is a linear or branched C.sub.1 -C.sub.20 alkyl radical, a linear or branched C.sub.2 -C.sub.20 alkenyl radical, or a C.sub.1 -C.sub.20 alkyl radical substituted by one or more hydroxy or alkoxy groups; r' and r", identical or different, represent a hydrogen atom, a C.sub.1 -C.sub.20 alkyl radical, a C.sub.2 -C.sub.6 hydroxyalkyl radical, or a C.sub.3 -C.sub.6 polyhydroxyalkyl, or r' and r" taken together, with the nitrogen atom, form a heterocycle;the number of carbon atoms in the --(CH.sub.2).sub.n --COR.sub.1 chain is less than or equal to 21;R.sub.2 and R.sub.3, identical or different, represent a hydrogen atom, a linear or branched C.sub.1 -C.sub.4 alkyl radical, or a C.sub.1 -C.sub.4 alkoxy; R.sub.

Abstract: A cosmetic or dermatological composition with a depigmenting action comprises derivatives of 2,5-dihydroxyphenylcarboxylic acids, their homologs, and their salts, with the derivatives having the following structural formula: ##STR1## wherein: R.sub.1 represents OR.sub.5, OH, or ##STR2## R.sub.5 is a linear or branched C.sub.1 -C.sub.20 alkyl radical, a linear or branched C.sub.2 -C.sub.20 alkenyl radical, or a C.sub.1 -C.sub.20 alkyl radical substituted by one or more hydroxy or alkoxy groups;r' and r", identical or different, represent a hydrogen atom, a C.sub.1 -C.sub.20 alkyl radical, a C.sub.2 -C.sub.6 hydroxyalkyl radical, or a C.sub.3 -C.sub.6 polyhydroxyalkyl, or r' and r" taken together, with the nitrogen atom, form a heterocycle;the number of carbon atoms in the --(CH.sub.2).sub.n --COR.sub.1 chain is less than or equal to 21;R.sub.2 and R.sub.3, identical or different, represent a hydrogen atom, a linear or branched C.sub.1 -C.sub.4 alkyl radical, or a C.sub.1 -C.sub.4 alkoxy; R.sub.

Abstract: Cosmetic or dermopharmaceutical composition.This composition is characterized in that it contains, in a suitable vehicle, an antioxidizing system possessing a synergic effect consisting of the combination of a lauroylmethionate of lysine, histidine or arginine, and of at least one polyphenol chosen from:a) a derivative of (2,5-dihydroxyphenyl)carboxylic acid, a homologue or a corresponding salt,b) an ester or amide of caffeic acid,c) a flavonoid or an extract containing flavonoids, andd ) a rosemary extract containing diphenols, and their mixtures.The use of the antioxidizing system enables good preservation of compositions containing oxidation-sensitive fats.

Abstract: A cosmetic or dermatological composition with a depigmenting action comprises derivatives of 2,5-dihydroxyphenylcarboxylic acids, their homologs, and their salts, with the derivatives having the following structural formula: ##STR1## wherein: R.sub.1 represents OR.sub.5, OH, or ##STR2## R.sub.5 is a linear or branched C.sub.1 -C.sub.20 alkyl radical, a linear or branched C.sub.2 -C.sub.20 alkenyl radical, or a C.sub.1 -C.sub.20 alkyl radical substituted by one or more hydroxy or alkoxy groups;r' and r", identical or different, represent a hydrogen atom, a C.sub.1 -C.sub.20 alkyl radical, a C.sub.2 -C.sub.6 hydroxyalkyl radical, or a C.sub.3 -C.sub.6 polyhydroxyalkyl, or r' and r" taken together, with the nitrogen atom, form a heterocycle;the number of carbon atoms in the --(CH.sub.2).sub.n --COR.sub.1 chain is less than or equal to 21;R.sub.2 and R.sub.3, identical or different, represent a hydrogen atom, a linear or branched C.sub.1 -C.sub.4 alkyl radical, or a C.sub.1 -C.sub.4 alkoxy;R.sub.

Abstract: Cosmetic composition containing melaninlike pigments in combination with certain tocopherols, and process for protecting the skin, hair, mucosae and cosmetic compositions.The present invention relates to a cosmetic composition comprising the combination of certain tocopherols bn with at least one melaninlike pigment derived from natural or synthetic sources, in a cosmetically acceptable carrier, and to a process for protecting the skin, mucosae, hair and cosmetic compositions against free radicals.

Abstract: A process for topical treatment of cutaneous ageing involves applying to skin a cosmetic or dermatological composition containing, as an active ingredient, a glutathione alkyl ester. The glutathione alkyl ester corresponds to the formula: ##STR1## in which R represents an alkyl radical having from 1 to 10 carbon atoms.

Abstract: A cosmetic or dermatological composition with a depigmenting action comprises derivatives of 2,5-dihydroxyphenylcarboxylic acids, their homologs, and their salts, with the derivatives having the following structural formula: ##STR1## wherein: R.sub.1 represents OR.sub.5, or ##STR2## R.sub.5 is a hydrogen atom, a linear or branched C.sub.1 -C.sub.20 alkyl radical, a linear or branched C.sub.2 -C.sub.20 alkenyl radical, or a C.sub.1 -C.sub.20 alkyl radical substituted by one or more hydroxy or alkoxy groups; r' and r", identical or different, represent a hydrogen atom, a C.sub.1 -C.sub.20 alkyl radical, a C.sub.2 -C.sub.6 hydroxyalkyl radical, or a C.sub.3 -C.sub.6 polyhydroxyalkyl, or r' and r" taken together, with the nitrogen atom, form a heterocycle; the number of carbon atoms in the --(CH.sub.2).sub.n --COR.sub.1 chain is less than or equal to 21;R.sub.2 and R.sub.3, identical or different, represent a hydrogen atom, a linear or branched C.sub.1 -C.sub.4 alkyl radical, or a C.sub.1 -C.sub.4 alkoxy; R.sub.

Abstract: The present invention addresses a cosmetic or dermopharmaceutical composition comprising, in a suitable vehicle, an antioxidizing system possessing a synergic effect consisting of the combination of laroylmethionate of lysine, histidine or arginine, and of at least one polyphenol chosen from:a) a derivative of (2,5-dihydroxyphenyl)-carboxylic acid, a homologue or a corresponding salt,b) an ester or amide of caffeic acid,c) a flavonoid or an extract containing flavenoids, andd) a rosemary extract containing diphenols, and their mixtures. The use of the antioxidizing system enables good preservation of compositions containing oxidation-sensitive fats.

Abstract: Cosmetic or pharmaceutical composition containing a dismutase superoxide (DSO) in combination with a phosphonic acid derivative used as metal chelating agent. These compositions are used in topical administration, in particular in the fight against skin aging and in the protection of the skin against radiation exposure.

Abstract: An antioxidant system is based on at least one basic amino acid and includes at least one tocopherol or a derivative thereof and at least one nonthiolated polypeptide. Preferably the antioxidant system contains from 0.5 to 20 weight percent of a tocopherol or derivative thereof, 0.5 to 50 weight percent of a basic amino acid and 0.5 to 90 weight percent of a nonthiolated polypeptide. This antioxidant system is employed in cosmetic or pharmaceutical compositions.

Abstract: A pharmaceutical or cosmetic depigmenting composition for application to the skin so as to improve the aesthetic appearance of the skin or to treat pathological or accidental hyperpigmentation contains caffeic acid or an ester or amide thereof in an amount effective to depigment the skin.

Abstract: An anti-oxidant system contains, in combination, at least one stabilized ascorbyl ester, at least one tocopherol or a mixture of tocopherols, or cafeic acid or a derivative thereof, at least one complexing agent and at least one non-thiol polypeptide. The anti-oxidant system is employed to stabilize fatty bodies and cosmetic compositions.

Abstract: An antioxidant system comprises at least one ascorbyl ester stabilized with at least one complexing agent and at least one thiol. The antioxidant system is usefully employed in fatty body containing compositions such as cosmetic or alimentary compositions.

Abstract: An emulsifying system for use in the production of cosmetic or pharmaceutical compositions in the form of an emulsoid or gel comprises (i) at least one fatty acid having from 8 to 22 carbon atoms or a protein condensate of a fatty acid having from 8 to 40 carbon atoms and a polypeptide of animal origin, (ii) a polyoxyethylenated sterol and (iii) a phosphatide.

Abstract: Copper lanolate, a novel product, can be produced by initially preparing an isotropic solution of a sodium or potassium salt of lanolic acid and thereafter precipitating copper lanolate therefrom by the addition thereto of a solution of a copper salt. The resulting copper lanolate is employed in anti-acne compositions for topical application to the skin.

Abstract: A mixture of vegetable oils is disclosed which is stable to oxidation, contains at least 5% of jojoba oil, the remainder consisting essentially of at least one other vegetable oil which is hazelnut oil, mango oil, coffee bean wax, karite butter, soya oil, palm oil or maize germ oil.

Abstract: Emulsions of the water-in-oil type having a water phase, an oil phase and an emulsifying agent consisting of a metal or alkaline-earth metal lanolinyl lactylate. The emulsions may also be in the form of cosmetic compositions, including other cosmetic additives, or may be used as pharmaceutical excipients.