The present invention relates to a makeup and/or care method of a nail and/or false nail, comprising a) applying a photocrosslinkable cosmetic composition (C1) onto a nail or false nail b) exposing the coated nail or false nail obtained in step a) to UV or visible light radiation and then photocrosslinking to obtain a crosslinked layer (C′1) c) applying a photocrosslinkable cosmetic composition (C2) onto the nail or false nail coated with the crosslinked layer (C′1) obtained in step b) and d) exposing the coated nail or false nail to UV or visible light radiation and then photocrosslinking to obtain a crosslinked layer (C′2) the composition (C1) comprising in a physiologically acceptable medium at least one photocrosslinkable compound comprising at least two (meth)acrylate functions and at least one carboxylic acid function, at least one volatile solvent (S) in a proportion greater than or equal to 30% in relation to the total weight of the composition (C1), and at least one photoinitiator the composition (C2) comprising, in a physiologically acceptable medium, 65 wt. % or more in relation to the total dry extract of (C2) of at least one photocrosslinkable urethane di(meth)acrylate compound, and at least one volatile solvent (S′).
