Soothing / Sensitive

Snail Mucin (Snail Secretion Filtrate)

INCI: Snail Secretion Filtrate

Snail secretion filtrate, commonly called snail mucin, is a naturally derived ingredient rich in glycoproteins, glycosaminoglycans and other skin-friendly molecules, used for hydration, soothing and a smooth, repaired-looking complexion.

INCISnail Secretion Filtrate
Also known assnail mucin
Use levelvariable; often a significant part of the formula
Solubilitywater-miscible
pH / stabilitybroad
RegulatoryListed in EU CosIng

What it does

  • Hydrates and improves skin smoothness and suppleness.
  • Soothes and supports a healthy-looking, repaired complexion.
  • A hallmark K-beauty ingredient.

How it works

Snail secretion filtrate is a complex mixture that naturally contains hydrating and skin-conditioning components such as glycoproteins, glycosaminoglycans (including hyaluronic-acid-type molecules), allantoin and small amounts of glycolic acid. It is widely documented as hydrating, soothing and skin-smoothing; composition varies by source and processing.

Use level

Typical use level
variable; often a significant part of the formula

Often used at high inclusion in K-beauty essences (sometimes a large share of the formula) or at lower levels as an active. Composition varies, so follow the supplier's specification.

Formulation considerations

  • Water-miscible; part of the water phase.
  • Nutrient-rich, so it needs adequate preservation.
  • Composition and viscosity vary by grade.

What it pairs with & what to avoid

Pairs well with

  • Hyaluronic acid, glycerin (hydration)
  • Panthenol, allantoin (soothing)

Use with care / avoid

  • Under-preserving mucin-rich systems

Regulatory status

Snail secretion filtrate is listed in the EU CosIng database and is a well-established cosmetic ingredient.

Common questions

What does snail mucin do for skin?

It hydrates, soothes and helps skin look smoother and repaired; it naturally contains glycoproteins, glycosaminoglycans and allantoin.

Is snail mucin good for sensitive skin?

It is generally gentle and popular for hydration and soothing, though individual responses vary.

How much snail mucin is used?

It varies widely — from a large share of a K-beauty essence to lower active levels; follow the supplier's grade.

Related monographs

The SBCT Labs Ingredient Suite is a free, independent educational resource for cosmetic R&D teams and formulators. It is provided for reference only and is not sales material — SBCT Labs does not necessarily supply the ingredients described here.

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