Abstract: The invention relates to a cosmetic composition comprising at least one cosmetically acceptable excipient and from 0.01 to 1% by weight, preferably from 0.05 to 0.6%, and more preferably from 0.1 to 0.3% by weight of the combination of an extract of the brown alga Laminaria digitata, of a Saccharomyces hydrolysate and of ascorbic acid or one of its esters, the percentage being expressed by dry weight. The combination of active agents of the invention for which a synergistic effect with regard to the synthesis of the procollagen I has been shown also produces an advantageous effect with regard to other markers of aging.

Abstract: The invention relates to a cosmetic composition comprising at least one cosmetically acceptable excipient and from 0.01 to 1% by weight, preferably from 0.05 to 0.6%, and more preferably from 0.1 to 0.3% by weight of the combination of an extract of the brown alga Laminaria digitata, of a Saccharomyces hydrolysate and of ascorbic acid or one of its esters, the percentage being expressed by dry weight. The combination of active agents of the invention for which a synergistic effect with regard to the synthesis of the procollagen I has been shown also produces an advantageous effect with regard to other markers of aging.

Abstract: The invention relates to a method and apparatus for characterizing the imperfections of the skin. The apparatus comprises: a) a digital camera allowing the taking of at least one digital image of at least one determined skin zone, the said image being defined by a multiplicity of pixels, that is transmitted to a digital image processing device; b) means of splitting the digital image into three color planes: red, green, blue, termed R, G, B, with the aid of the said image processing device; c) means of extracting a single of these planes; d) means of calculating at least one of the following parameters on the basis of this plane: the mean grey level of the image; the surface area of the imperfections of the skin of the said image, some of which are related to aging, such as wrinkles, lines, spots, dark circles, pigmentary imperfections, slackening or loosening zones; the variance of the grey levels over the set of pixels of the image as parameter representative of the homogeneity of the skin.

Abstract: A polyphenol-rich plant extract is used in combination with at least one hydrating or humectant agent, as cosmetic active agents in a cosmetic composition. The combination improves hydrating and antioxidant cosmetic care.

Abstract: A polyphenol-rich plant extract is used in combination with at least one hydrating or humectant agent, as cosmetic active agents in a cosmetic composition. The combination improves hydrating and antioxidant cosmetic care.

Abstract: The invention relates to a method and apparatus for characterizing the imperfections of the skin. The apparatus comprises: a) a digital camera allowing the taking of at least one digital image of at least one determined skin zone, the said image being defined by a multiplicity of pixels, that is transmitted to a digital image processing device; b) means of splitting the digital image into three colour planes: red, green, blue, termed R, G, B, with the aid of the said image processing device; c) means of extracting a single of these planes; d) means of calculating at least one of the following parameters on the basis of this plane: the mean grey level of the image; the surface area of the imperfections of the skin of the said image, some of which are related to aging, such as wrinkles, lines, spots, dark circles, pigmentary imperfections, slackening or loosening zones; the variance of the grey levels over the set of pixels of the image as parameter representative of the homogeneity of the skin.