Abstract: The present invention relates to a cosmetic or dermatological composition containing a continuous aqueous phase in which are dispersed vesicles based on at least one alkyl polypentoside, and also comprising at least one alcohol and at least one surfactant. More precisely, the cosmetic or dermatological composition comprises at least one cosmetic or dermatological active agent and at least one continuous aqueous phase in which are dispersed vesicles, said vesicles comprising at least one alkyl polypentoside obtained by reaction of a pentose and of at least a first and a second fatty alcohol comprising a different number of carbon atoms ranging from 10 to 12, said polypentoside having an average polymerization degree of less than or equal to 2, and said composition also comprising at least one surfactant having a HLB of less than 10, and at least one alcohol containing from 1 to 5 carbon atoms.

Abstract: The present invention relates to a cosmetic or dermatological composition containing a continuous aqueous phase in which are dispersed vesicles based on at least one alkyl polypentoside, and also comprising at least one alcohol and at least one surfactant. More precisely, the cosmetic or dermatological composition comprises at least one cosmetic or dermatological active agent and at least one continuous aqueous phase in which are dispersed vesicles, said vesicles comprising at least one alkyl polypentoside obtained by reaction of a pentose and of at least a first and a second fatty alcohol comprising a different number of carbon atoms ranging from 10 to 12, said polypentoside having an average polymerization degree of less than or equal to 2, and said composition also comprising at least one surfactant having a HLB of less than 10, and at least one alcohol containing from 1 to 5 carbon atoms.

Abstract: Surfactant system capable of forming a dispersion of vesicles or liposomes constituted of alkyl polyglycoside of formula RO(X)n, in which R is a linear or branched alkyl chain, with or without unsaturation, and having 8 to 12 carbon atoms, X being a pentose residue, and n, representing the average degree of oligomerization, is between 1 and 3, and of a hydrotrope or co-solvent.

Abstract: The invention is directed to liposomes comprising at least one wall formed by a bilayer of amphiphilic lipids and containing an oxazolidin-2-one compound substituted in the 4-position, of formula (I): wherein the R represents a linear or branched, saturated or unsaturated hydrocarbon-based group containing from 4 to 30 carbon atoms. These liposomes may be used in the form of an aqueous dispersion in cosmetic or dermatological compositions comprising said dispersion; and at least one cosmetically or dermatologically acceptable excipient.

Abstract: The invention relates to the use of an aqueous composition comprising at least one surface-active agent in the form of bilayers and exhibiting a structure of sponge phase type as cosmetic composition or for the preparation of a cosmetic composition. It also relates to aqueous compositions, in particular lotions, in the sponge phase form including at least one cosmetic active agent or one cosmetic additive. It also relates to a method for the cosmetic care of the skin or superficial body growths, in particular for the purpose of moisturizing them, and/or to a method intended to give fragrance to the skin or superficial body growths.