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Surfactant

SODIUM STEAROYL HYDROLYZED SILK

CAS 222400-46-6 Updated
75

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

Stearic acid linked to hydrolyzed silk protein — gives a soft, smooth conditioning film and very gentle cleansing. Animal-derived from silkworm cocoons, so not vegan but well tolerated otherwise.

Function

CLEANSINGHAIR CONDITIONINGSKIN CONDITIONINGSURFACTANT - CLEANSING

Skin benefits

  • Smooth, conditioning skin feel
  • Mild cleansing co-surfactant
  • Silk-protein film for softness
  • Reduces irritation of stronger surfactants

Known concerns

  • Animal-derived (not vegan)
  • Rare allergen for silk-sensitive users

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.