Snail Mucin (Snail Secretion Filtrate)
A filtered secretion from snails, a K-beauty essence staple, used at high percentages for the appearance of plumper, more hydrated skin. It is a mixture of glycoproteins, hyaluronic acid, glycolic acid and other conditioners rather than a single active, and it is not vegan. Popularized by Korean skincare brands, it is now sold worldwide in essences, ampoules and creams, usually disclosed at a high percentage as a hydrating base rather than as a treatment active.
Studied for
- ·The appearance of hydrated, plumper-looking skin
- ·The look of a calmer, more comfortable-looking surface
- ·The look of a smoother, more supple-looking texture with regular use
How it’s thought to work
Studied for holding water at the surface and conditioning the look of the skin; because it is a complex mixture, effects are credited to the blend rather than one molecule. It commonly contains natural humectants and mild acids alongside the glycoproteins, part of why it is often described as an all-in-one hydrating and conditioning layer rather than a targeted treatment.
A 12 week human trial found a snail secretion filtrate emulsion and serum helped photoaged facial skin look smoother and less wrinkled than placebo.
The Effects of Filtrate of the Secretion of the Cryptomphalus Aspersa on Photoaged Skin. Journal of Drugs in Dermatology, 2013.
View on PubMed (PMID 23652894) ↗Questions
- Does snail mucin actually do anything?
- As a hydrator and comfort ingredient, most people find it pleasant and it can leave skin looking plumper while it is used. The cosmetic evidence is limited and it is a blend rather than a dosed active, so think of it as a nice hydrating layer, not a treatment.
- Is snail mucin ethically sourced?
- Reputable brands use secretion methods designed not to harm the snails, letting them crawl over a mesh or similar surface, but it remains an animal-derived ingredient and is not vegan, so check sourcing claims if that matters to you.
- What percentage of snail mucin should I look for?
- Many essences and ampoules are formulated at 70 to 96 percent, since it functions as a hydrating base rather than a dosed active, so a high number is common and not necessarily a sign of a stronger product.