COSRX Advanced Snail 96 Mucin Power Essence is a cult-favorite Korean skincare essence formulated with 96% snail secretion filtrate, known for its hydrating and skin-repairing properties. The lightweight, fragrance-free gel texture absorbs quickly, helping to hydrate skin, improve texture, and support a smoother, more supple look often described as a glass-skin glow. It also contains hyaluronic acid (sodium hyaluronate), panthenol, and allantoin to help soothe and moisturize. It is suitable for most skin types, including sensitive and post-acne skin, and works well as a hydrating step for dry or dull complexions. Use after cleansing and toning: pat a small amount evenly over the face and neck, then follow with a moisturizer to lock in hydration. Can be layered under serums and creams in a daily routine.