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COSRX
Advanced Snail 96 Mucin Power Essence
7.9Good
The K-beauty hydration staple: 96% snail mucin in a lightweight, fragrance-free essence that most skin types tolerate, at a fair price.
Essence5$25.00
Hydrators· in 1 product
Snail mucin
Also listed as Snail secretion filtrate and Helix aspersa (Cornu aspersum) extract
Emerging evidence Often 70–97% of the formula, as listed by brands
Snail mucin, listed as snail secretion filtrate, is a slippery, hydrating extract that became a K-beauty staple and a TikTok best-seller. It contains glycoproteins, hyaluronic acid-like sugars, allantoin and glycolic acid in small amounts.
1SmSnail mucinHydrators
What it does
The short version.
The filtrate's sugars and proteins bind water and form a light, film-forming layer that leaves skin feeling plump and smooth. Laboratory studies suggest antioxidant and wound-healing-support activity, and brands market it for hydration, dullness and post-blemish marks. In practice its most consistent effect is hydration with an elegant, slightly slippery texture.
Emerging evidence
Evidence is mostly from laboratory work and small, industry-sponsored clinical studies of specific products; reviews note promising but limited data and wide variation between extracts.
In our directory: It’s a key ingredient in 1 product we review, most often serums. Those products are mostly built for hydrating, barrier repair and soothing. In formulas, it most often shares the label with hyaluronic acid, allantoin and panthenol.
Usually a good fit for
How to use it
Getting it right.
Apply after cleansing and toner, before heavier creams, once or twice daily.
Layering
Friends & frenemies.
Before you start
Generally well tolerated, but people with allergies to snails, mollusks or dust mites should patch test or avoid, since cross-reactive allergens have been described. Not vegan.
References
- 1Snail extract for skin: A review of uses, projections, and limitations — Journal of Cosmetic Dermatology (2024), via PubMed
- 2Efficacy and Safety of a New Cosmeceutical Regimen Based on the Combination of Snail Secretion Filtrate and Snail Egg Extract to Improve Signs of Skin Aging — Journal of Clinical and Aesthetic Dermatology (2020), via PubMed
Educational, not medical advice. Ingredient guides summarise published research and expert guidance; formulas and concentrations differ between products.
1 product
Every product with snail mucin.
1 product
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