Snail mucin, or snail secretion filtrate, is one of K-beauty's most iconic ingredients. Packed with moisture-binding, skin-loving components, it's a cult favourite for boosting hydration and glow. Used regularly, it helps skin look smoother and more even, softens the appearance of texture and marks left by past breakouts, and supports the skin's natural renewal for a healthier-looking finish. Its lightweight, bouncy texture suits most skin types, especially dull, dry or uneven complexions. Our edit brings together the best snail mucin essences, serums, creams and masks from the K-beauty world, including cult favourites from COSRX.