The invention relates to novel cationic benzoxazine-based compounds of formula (I) below, in which ● R represents a hydrogen atom or a C1-C4 alkyl or C1-C4 hydroxyalkyl radical, ● R2, R3, R4 and R5 independently represent: - a hydrogen atom, - a linear C1-C4 or branched C3-C4 alkyl radical, optionally substituted with a hydroxyl radical, ● L represents a linear or branched, saturated C1-C30 hydrocarbon-based chain, ● CAT+ represents a cationic radical chosen from: - a cationic heterocyclic radical comprising 5 to 8 ring members containing at least one heteroatom chosen from O, N and S, - a tri(hydroxy)(C1-C4)alkylammonium radical, - a non-cationic heterocycle comprising 5 or 6 ring members containing at least one heteroatom chosen from O and N, such as pyrrolidine, substituted with a cationic radical, An- represents an anion or a mixture of anions which are organic or inorganic and are cosmetically acceptable.
