the invention relates to a composition containing between 0 . 1 and 30 wt .-% copolyamide and between 70 and 99 . 9 wt .-% of a medium acceptable for cosmetic , perfume and / or pharmaceutical use . in particular , the invention relates to a method for incorporating a copolyamide into a cosmetic , perfume and / or pharmaceutical medium . the invention also relates to the use of a copolyamide for the production of a cosmetic , pharmaceutical or perfume product , said copa being incorporated in the form of a composition in accordance with the invention .