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Surfactant

SODIUM STEAROYL METHYL ISETHIONATE

Updated
78

Safety score · 0–100

Fine

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

About

A mild syndet-bar surfactant from coconut/stearic chemistry. Cleanses and foams much more gently than SLS, with a long industry track record in sensitive-skin cleansers.

Function

CLEANSINGSURFACTANT - FOAM BOOSTINGSURFACTANT - CLEANSING

Skin benefits

  • Mild anionic surfactant
  • Gentler than SLS on skin
  • Good foaming in syndet bars
  • Biodegradable

Known concerns

  • Mild eye sting in concentrated form
  • Trace stearic acid impurities possible

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.