Abstract: The present invention concerns a composition for topical application to keratinous material, in particular the skin and/or lips, comprising, in a physiologically acceptable medium, at least one Lactobacillus rhamnosus extract (CNCM I-5313), one of its fractions and/or one of its metabolites and at least one excipient chosen from solvents other than water, UV filters, surfactants, gelling agents, thickeners, fillers, dyes, film-forming polymers, perfumes and the mixtures of same; and the uses thereof, in particular for promoting and/or improving the skin barrier function.

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.