Disclosed is a composition of ion-exchange resins made from a styrene-divinylbenzene copolymer or an acrylic-divinylbenzene copolymer filled with at least one lipoaminoacid with the formula (I), in which R1 is the chain characterising a fatty acid, saturated or unsaturated, linear or branching, including 7 to 21 atoms of carbon, R2 is the chain characterising an amino acid and m is between 1 and 50, or a mixture of the compounds with the formula (I).
