The present invention relates to a photo-crosslinkable cosmetic composition, in particular for coating a nail or false nail, and more particularly for making up a nail or false nail, comprising, in a physiologically acceptable medium:—at least one photo-crosslinkable compound comprising at least one (poly)urethane poly(ALK)acrylate compound, preferably polyurethane di(meth)acrylate compound, more preferentially polyurethane dimethacrylate compound,—nitrocellulose,—at least one primary anti-oxidant, preferably chosen from sterically hindered phenols, and aromatic secondary amines, more preferentially di(tert-butyl) 4-hydroxytoluene,—at least one secondary antioxidant, preferably chosen from compounds comprising at least one unit formed from a sulfur atom linked to two carbon atoms, more preferentially chosen from a di(t-butyl) hydroxyphenylamino bisoctylthiotriazine compound. The present invention also relates to specific methods for applying such a composition.
