Cosmetic composition which in a physiologically acceptable medium comprises the association of at least one monosaccharide selected from mannose, rhamnose and its mixture, and at least one additional compound selected from C-glycosides, their derivatives and mixtures thereof, in which said monosaccharide is in the form of a monomer, and in which the C-glycoside responds to the following formula (I): ** Formula ** in which,. R represents: - a linear, saturated alkyl radical of C1 to C20, in particular C1 to C10, or unsaturated of C2 to C20, in particular of C2 to C10, or a branched or cyclic, saturated or unsaturated alkyl radical of C3 to C20, in particular from C3 to C10； - a hydrofluoro- or perfluoro-alkyl radical, linear, saturated from C1 to C20, in particular from C1 to C10, or unsaturated from C2 to C20, in particular from C2 to C10, or branched or cyclic, saturated or unsaturated, from C3 to C20, in particular from C3 to C10； the hydrocarbon chain constituting said radicals may possibly be interrupted by 1, 2, 3 or more heteroatoms selected from: - an oxygen, - a sulfur, - a nitrogen, and - a silicon, and may eventually be substituted by at least one radical selected from: - -OR4, - -SR4, - -NR4R5, - -COOR4, - -CONHR4, - -CN, - a halogen atom, - a hydrofluoro- or perfluoro-C1-C6 alkyl radical, and / or - a C3 to C8 cycloalkyl radical, with R4 and R5 being able to represent, independently from each other, a hydrogen atom, or a linear alkyl, perfluoroalkyl or hydrofluoroalkyl radical, saturated from C1 to C30, especially from C1 to C12, or unsaturated from C2 to C30, especially from C2 to C12, or branched or cyclic, saturated or unsaturated, from C3 to C30, especially from C3 to C12； or an aryl radical from C6 to C10,. X represents a radical selected from the groups: ** Formula ** with R1, R2 and R3 representing, independently of one another, a hydrogen atom, or a radical R, with R as defined above, and R ' 1 represents a hydrogen atom, a group -OH or a radical
