Cosmetic composition comprising - one or more dicarbonylated compounds that respond to the following formula (I) and / or its hydrates and / or salts thereof: formula (I) in which R represents an atom or a group selected from i) hydrogen, ii) carboxy-C (O) OH, iii) linear or branched C1-C6 alkyl, preferably substituted, preferably with at least one hydroxy radical -OH, carboxy -C (O) -OH or halogen such as Br； iv) optionally substituted phenyl, v) optionally substituted benzyl, iv) and v) preferably being optionally substituted with at least one -OH or -C (O) OH radical； vi) an indolyl radical and vii) an imidazolylmethyl radical and its tautomers as with * representing the part bound to the rest of the molecule, - responding one or more silanes of the following formula (II) and / or their oligomers: R1Si (OR2 ) z (R3) x (OH) and (II) formula (II) in which: - R1 is a C1-C6 hydrocarbon chain, linear or branched, saturated or unsaturated, cyclic or acyclic substituted with a group selected from groups: - NH2 or NHR amine (R = C1-C20 alkyl, in particular C1-C6 optionally substituted by a radical comprising a silicon atom, C3-C40 cycloalkyl or C6-C30 aromatic), - or pair a hydroxy group, - a thiol group, - an aryl or aryloxy group substituted or not, in particular with an amino group or with a C1-C4 aminoalkyl group； R1 being able to be interrupted with a heteroatom (O, S, NH) or a carbonyl group (CO), - R2 and R3 identical or different, represent an alkyl group, linear or branched, comprising 1 to 6 carbon atoms, - and designates an integer that goes from 0 to 3, and - z designates an integer that goes from 0 to 3, and - x designates an integer that goes from 0 to 2, with z + x + y = 3.Composición cosmética que comprende - uno o varios compuestos dicarbonilados que responden a la fórmula (I) siguiente y/o sus hidratos y/o sus sales: fórmula (I) en la que R representa un átomo o un grupo seleccionado entre i) hidrógeno, ii) carboxi -C(O)OH, iii) alquilo lineal o ramific
