Abstract: A process and composition for improvement of the moisturization state of the stratum corneum of human skin epidermis comprising applying to the skin an effective amount of a composition (C) for topical use comprising at least one cosmetically acceptable excipient and a composition C1 consisting of 20-50% by weight of composition C2, which in turn includes from 3-25% by weight of a polyol, from 25-45% by weight anhydrides of the polyol, and from 30-72% by weight of polyol glycosides of the polyol, with the remainder of composition C2 to 100% by weight being made up of water; and from 50-80% by weight of glycerol and/or glycerol oligomers, with the ratio of polyol glycosides to glycerol and/or glycerol oligomers greater than or equal to 1/10 and less than or equal to 1/2.

Abstract: A process for improvement of the moisturization state of thestratum corneum of human skin epidermis includes at least one step a) of applying, to the surface of the skin to be treated, an effective amount of a composition for topical use including at least one cosmetically acceptable excipient and a composition C1 including 20-50% by weight of composition C2, which in turn includes from 3-25% by weight of a polyol of formula (I): HO—CH2-(CHOH)m-CH2-OH (I); (2)—from 25-45% by weight anhydrides of the polyol of formula (I); (3)—from 30-72% by weight of a composition CA represented by formula (II): HO—CH2-(CHOH)m-CH2-0-(G)x-H (II), (4) the remainder to 100% by weight being made up of water; and—(b)—from 50-80% by weight of at least one compound of formula (III): HO—[CH2-CH(OH)—CH2-O]p-H (III).

Abstract: Disclosed is a lipophilic extract of brown algae gametophytes obtained by the method including the following consecutive steps: —a Step A) for preparing a hydro-alcoholic suspension of gametophyte cells by mixing an aqueous suspension of brown algae gametophyte cells with at least one aliphatic alcohol including 1 to 4 carbon atoms; —a Step B) for mixing the hydro-alcoholic suspension of algae gametophyte cells, obtained in Step A), with at least one triglyceride from fatty acids that include 8 to 22 carbon atoms; —a Step C) for adding water to the multiphase mixture obtained in Step B); and —a Step D) for isolating the lipophilic extract of brown algae gametophytes from the mixture obtained in Step C). Also disclosed are the cosmetic and pharmaceutical use of the extract.

Abstract: Disclosed is a lipophilic extract of brown algae gametophytes obtained by the method including the following consecutive steps: —a Step A) for preparing a hydro-alcoholic suspension of gametophyte cells by mixing an aqueous suspension of brown algae gametophyte cells with at least one aliphatic alcohol including 1 to 4 carbon atoms; —a Step B) for mixing the hydro-alcoholic suspension of algae gametophyte cells, obtained in Step A), with at least one triglyceride from fatty acids that include 8 to 22 carbon atoms; —a Step C) for adding water to the multiphase mixture obtained in Step B); and —a Step D) for isolating the lipophilic extract of brown algae gametophytes from the mixture obtained in Step C). Also disclosed are the cosmetic and pharmaceutical use of the extract.

Abstract: Disclosed is a compound of formula (I?): R?—O—CH2-CH(OH)—[CH2-O—CH2]s-[CH(OH)]p-CH2-O—R? (I?), formula (I?), wherein s is equal to 0 or 1, and p is equal to 0, 1, 2 or 3, R? and R?, identical or different, represent a hydrogen atom, or a monovalent radical of formula (II?a), or a monovalent radical of formula (II?b), in order to prevent or slow down the appearance of the signs of ageing of the human skin or lips or to eradicate these signs. Also disclosed are a novel product, novel composition and cosmetic method.

Abstract: A compound of formula (I) is disclosed, in which R? and R?, which may be identical or different, represent either a hydrogen atom or a monovalent radical of formula (IIa); or of a composition (C1) including between 99% and 20% by mass of a compound of formula (Ia), and between 1% and 80% by mass of a compound of formula (1b), with the aim of preventing or retarding the appearance of the signs of ageing of the human skin or lips or to eliminate the signs, the use being in the form of a cosmetic composition. Also disclosed is a method using the product of formula (I) or composition (C1).

Abstract: The invention relates to the cosmetic use of isoleucine N-hexadecanoyl of formula (I): CH3—(CH2)14—C(?O)—NH—CH(COOH)—CH(CH3)—CH2—CH3 (I) as a “volumizing” agent and/or as a “plumping” agent for human skin. The invention also relates to a cosmetic treatment method for obtaining a “volumizing” and/or “plumping” effect of the skin of a part of the human body selected from among the breasts, face, cheeks, buttocks and eyelids.

Abstract: A compound of formula (I): R?—O-A-O—R?, in which R? and R? are a hydrogen atom or a monovalent radical of formula (IIa), or a monovalent radical of formula (IIb), it being understood that at least one of the radicals R? or R? is not a hydrogen atom and that, when none of the radicals R? and R? is a hydrogen atom, R? and R? are identical, and in which A is a divalent radical of formula (III): —CH(X1)-[C(X2)(X3)]p-CH(X4) in which X1, X2, X3 and X4 are identical or different and are either a hydrogen atom or a methyl radical or an ethyl radical, and p is an integer greater than or equal to 1 and less than or equal to 6. Also the method for preparing the compound of formula (I) and to the use thereof in cosmetics and as a drug.

Abstract: Compound with formula (I), wherein R? and R? represent a hydrogen atom, a monovalent radical with formula (IIa), or a monovalent radical with formula (IIb), it being understood that at least one of the R? or R? radicals does not represent a hydrogen atom and that when the R? and R? radicals do not represent a hydrogen atom, R? and R? are identical; method for preparing and using in cosmetics and as a drug.

Abstract: A compound of formula (I): R?—O-A-O—R??, in which R? and R? are a hydrogen atom or a monovalent radical of formula (IIa), or a monovalent radical of formula (IIb), it being understood that at least one of the radicals R? or R? is not a hydrogen atom and that, when none of the radicals R? and R? is a hydrogen atom, R? and R? are identical, and in which A is a divalent radical of formula (III): —CH(X1)-[C(X2)(X3)]p-CH(X4) in which X1, X2, X3 and X4 are identical or different and are either a hydrogen atom or a methyl radical or an ethyl radical, and p is an integer greater than or equal to 1 and less than or equal to 6. Also the method for preparing the compound of formula (I) and to the use thereof in cosmetics and as a drug.

Abstract: Compound with formula (I), wherein R? and R? represent a hydrogen atom, a monovalent radical with formula (IIa), or a monovalent radical with formula (IIb), it being understood that at least one of the R? or R? radicals does not represent a hydrogen atom and that when the R? and R? radicals do not represent a hydrogen atom, R? and R? are identical; method for preparing and using in cosmetics and as a drug.

Abstract: A compound of the formula (I): where m is an integer equal to 0 or 1, and p is an integer equal to 0, 1, 2 or 3. A method for preparing the compound of the formula (I), and the use thereof as a skin lightening agent. A cosmetic composition and a drug containing the compound of the formula (I).

Abstract: The invention relates to the cosmetic use of isoleucine N-hexadecanoyl of formula (I): CH3—(CH2)14—C(?O)—NH—CH(COOH)—CH(CH3)—CH2—CH3 (I) as a “volumizing” agent and/or as a “plumping” agent for human skin. The invention also relates to a cosmetic treatment method for obtaining a “volumizing” and/or “plumping” effect of the skin of a part of the human body selected from among the breasts, face, cheeks, buttocks and eyelids.

Abstract: A compound of the formula (I): where m is an integer equal to 0 or 1, and p is an integer equal to 0, 1, 2 or 3. A method for preparing the compound of the formula (I), and the use thereof as a skin lightening agent. A cosmetic composition and a drug containing the compound of the formula (I).