Abstract: The present invention relates to a synergistic extract of Palmaria palmata and of jasmine flower heads, obtained after aqueous extraction of Palmaria palmata, in which maceration of the jasmine flower heads is then carried out, the ratio of the dry weight of Palmaria palmata to the dry weight of the flower heads being between 40/60 and 95/5. The present invention also relates to a method for obtaining said synergistic extract and cosmetic compositions comprising said extract as an active agent. The invention finally relates to the cosmetic use of said composition for combating the signs of aging and for improving the elasticity of the skin, by favoring maintenance of the “stem” character of the adult dermal stem cells (SKPs).

Abstract: The invention relates to an aqueous extract enriched with small RNA having a maximum length of 150 nucleotides, from plant material. The invention relates to an aqueous extract of plant material, enriched with small RNAs having a maximum length of 150 nucleotides, which can be obtained by such a method, as well as to the compositions comprising such an extract and to their cosmetic uses for combating the signs of skin aging and for improving the hydration of the skin.

Abstract: The invention relates to a Truffle extract for skin cosmetic use, comprising compounds having a molecular weight of less than 5 kDa. The invention also relates to a cosmetic method of treatment designed to reduce and/or correct the signs of aging and photo-aging of the skin and keratinous appendages, and to protect the skin against aggressions due to ultraviolet radiation.

Abstract: The invention relates to a method for obtaining an aqueous extract enriched with small RNA having a maximum length of 150 nucleotides, from plant material. The invention is characterized in that it comprises the following steps according to which: a) the plant material is put in contact with water; b) tetrasodium ethylenediaminetetraacetic acid (EDTA) is added to the mixture obtained in a) at a pH between 10.5 and 11; c) then, the pH of the mixture obtained in b) is adjusted to a value between 6 and 8; d) the mixture obtained in c) is purified in such a manner as to eliminate the plant material and to recover an aqueous raw extract; and e) the pH is checked and readjusted if necessary to a value between 6 and 8.

Abstract: The present invention relates to a synergistic extract of Palmaria palmata and of jasmine flower heads, obtained after aqueous extraction of Palmaria palmata, in which maceration of the jasmine flower heads is then carried out, the ratio of the dry weight of Palmaria palmata to the dry weight of the flower heads being between 40/60 and 95/5. The present invention also relates to a method for obtaining said synergistic extract and cosmetic compositions comprising said extract as an active agent. The invention finally relates to the cosmetic use of said composition for combating the signs of aging and for improving the elasticity of the skin, by favoring maintenance of the “stem” character of the adult dermal stem cells (SKPs).

Abstract: The invention relates to a Truffle extract for skin cosmetic use, comprising compounds having a molecular weight of less than 5 kDa. The invention also relates to a cosmetic method of treatment designed to reduce and/or correct the signs of aging and photo-aging of the skin and keratinous appendages, and to protect the skin against aggressions due to ultraviolet radiation.