aka Snail secretion filtrate, Snail slime, Cryptomphalus aspersa, Helix aspersa
Snail mucin is a filtered snail secretion rich in water-binding sugars and proteins, known for helping skin feel hydrated, smoother and more comfortable. Its anti-ageing evidence is weak and mostly comes from small studies of one company's products.
No known clashes. Still patch test anything new.
Snail secretion contains natural water-binding ingredients (glycosaminoglycans, hyaluronic acid, allantoin, glycolic acid), small peptides and minerals such as zinc. It also contains collagen and elastin, but these are too large to get into skin. [4]
A systematic review of 10 small trials found consistent improvements in skin hydration and less water loss, with some improvement in firmness and elasticity. But the tested products contained other active ingredients, so the results can't be credited to snail alone. [1]
The most-cited trials tested products made by one Spanish company, and one was funded by it. [2] [3] Cosmetic chemist Dr Michelle Wong reads the anti-ageing results as mostly a hydration effect. [4]
How to use it
Snails are stressed, for example by gentle prodding or salty water, so they produce slime, which is then filtered and purified. The snails survive, though as one chemist puts it, 'it doesn't sound particularly pleasant'. It isn't vegan. [4]
Each links to Australian stockists, with the price range across shops.
General information only, not medical advice.