Polyurethane-100 ek synthetic polymer hai jo skincare aur cosmetics mein use hota hai. Yeh film-forming agent ki tarah kaam karta hai aur skin par ek smooth, flexible, aur water-resistant layer banata hai. Isse sunscreens, makeup, aur other products mein commonly use hota hai taki products ka lasting effect rahe aur skin par acche se stick rahe.