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Surfactant

SODIUM DECYL SULFATE

CAS 142-87-0 Updated
55

Safety score · 0–100

Moderate

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

About

A short-chain alkyl sulfate detergent (C10) — closely related to SLS but with a shorter chain that makes it more irritating. Strong cleanser, but a moderate concern in leave-on or sensitive products.

Function

CLEANSINGSURFACTANT - FOAM BOOSTINGSURFACTANT - CLEANSING

Skin benefits

  • Strong cleansing and foaming
  • Effective oil and dirt removal

Known concerns

  • Anionic alkyl sulfate — irritating and defatting
  • Stronger eye/skin sting than longer-chain SLS
  • Not preferred for leave-on or sensitive-skin products
  • Stripping for hair and scalp at high use levels

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.