The COSRX Advanced Snail 96 Mucin Power Essence (30ml) is a lightweight, hydrating serum formulated with 96% snail secretion filtrate to repair, soothe, and deeply moisturize skin. It boosts skin elasticity and helps fade dark spots or acne scars for a radiant, "glass skin" look. Suitable for all skin types, it absorbs quickly without leaving a greasy residue.