Polymethyl methacrylate (PMMA) ek synthetic acrylic polymer hai jo cosmetics mein spherical microbeads ya particles ke roop mein use hota hai. Yeh skin ka texture improve karta hai, smooth aur soft-focus finish deta hai, aur oil absorption mein madad karta hai. Saath hi even coverage provide karta hai. Dermal fillers mein bhi iska use hota hai.