It helps to improve skin elasticity, smooth out fine lines and wrinkles, and enhance the overall texture and appearance of your skin. The COSRX Advanced Snail 96 Mucin Power Essence is suitable for all skin types, including sensitive skin.the magic happens after two weeks of using snail mucin. Julia agrees: Your skin will feel much more hydrated and glowy after the first use, but after around two weeks of continual use, you will see and feel the real benefits.