Tin dioxide (stannic oxide) ek inorganic mineral hai jo cosmetics mein mainly opacifying agent ki tarah use hota hai — matlab products ko opaque ya less transparent banata hai. Yeh pigments ki color, sparkle, aur coverage ko enhance karta hai, aur aksar doosre colorants ke liye coating ya carrier ki tarah kaam karta hai. Yeh ek base material hai jo makeup aur skincare formulations mein texture aur finish improve karne ke liye add kiya jaata hai.