Abstract: A cosmetic method for releasing an active principle in a controlled fashion to uninjured skin, as a function of the ion content in or on skin, by exchange with the ions, in order to provide at least one cosmetic benefit to the skin, the method includes applying onto skin a composition containing, in a cosmetically acceptable medium, at least one resinate including one organic ion-exchange resin and at least one ionizable cosmetic active principle bonded in noncovalent fashion to the resin.

Abstract: A process for preparing a cosmetic composition, characterized in that it includes: optionally a pretreatment of an organic ion-exchange resin, the absorption of at least one organic colorant onto the optionally pretreated resin in order to form a resinate, the optional grinding of the resulting resinate and the incorporation of the resinate into a cosmetically acceptable polar medium. It also relates to the composition obtained, to the resinate formed and also to the use of at least one organic ion-exchange resin for stabilizing at least one organic colorant in a cosmetically acceptable polar medium.

Abstract: A cosmetic method for releasing an active principle in a controlled fashion to uninjured skin, as a function of the ion content in or on skin, by exchange with the ions, in order to provide at least one cosmetic benefit to the skin, the method includes applying onto skin a composition containing, in a cosmetically acceptable medium, at least one resinate including one organic ion-exchange resin and at least one ionizable cosmetic active principle bonded in noncovalent fashion to the resin.