Copolymers ek tarah ke synthetic polymers hote hain jo do ya zyada alag-alag monomers se milke bante hain. Skincare mein yeh film-forming agents, thickeners, emulsion stabilizers aur texture modifiers ki tarah kaam karte hain. Yeh products ko skin pe achhi tarah se stick karne mein help karte hain, product ki viscosity control karte hain, aur overall texture aur feel ko better banate hain.