COSRX Advanced Snail Mucin Power Sheet Mask Bundle (10pcs) is a moisturising Korean sheet mask soaked in essence that contains 35,000ppm of snail mucin. This mask sheet works by strengthening the skin barrier, repairing damaged skin and deliver hydration to plump and firm skin. It also helps improve the appearance of acne scars and blemishes by smoothing out skin tone and texture, leaving the skin silky-smooth, firm and supple. Key Points: With naturally-derived cellulose sheet Dermatologically tested Improves skin elasticity Lightweight, fast-absorbing texture Helps diminish acne scars and blemishes