Snail mucin (often listed as snail secretion filtrate) is one of the most iconic ingredients in Korean skincare. It is a naturally hydrating substance rich in glycoproteins, hyaluronic acid and glycolic acid that helps skin feel soft, smooth and moisturized.
Why it is so popular
Snail mucin has a light, slightly gel-like texture that absorbs quickly and layers easily under other products. Many people use it to get the healthy, "glass skin" glow K-beauty is known for.
Where you will find it
Look for snail mucin in essences, serums and ampoules, sheet masks and moisturizing creams.
Good to know
Snail mucin is generally well tolerated, but as with any new product, patch-test first. If you follow a vegan routine, note that it is an animal-derived ingredient.
Related: Korean skincare routine for beginners
Key benefits
Deeply hydrates and softens skin
Supports a smooth, dewy-looking glow
Helps skin look plump and healthy
Lightweight and easy to layer
Best for
Dry, dull and normal skin; most skin types
How to use
Apply after toner and before moisturizer, morning and/or night. Pat 2-3 drops of essence or serum into clean skin. Pairs well with hyaluronic acid and niacinamide.