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STEARAMIDOPROPYL TRIMONIUM METHOSULFATE

CAS 19277-88-4
48

Safety score · 0–100

Moderate

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

About

Stearamidopropyl Trimonium Methosulfate is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

This quaternary ammonium compound functions as an antistatic and conditioning agent in cosmetic formulations. In the EU, quaternary ammonium compounds are subject to general restrictions under Annex III of the Cosmetics Regulation due to their potential for skin sensitisation and eye irritation. The ingredient's hazard profile (H318 eye damage, H400/H410 aquatic toxicity, H302 acute toxicity) contributes to a moderate safety concern in leave-on applications.

Skin benefits

  • Antistatic properties reduce flyaway and improve hair manageability
  • Conditions and softens skin and hair

Known concerns

  • Serious eye damage (H318)
  • Harmful if swallowed (H302)
  • Skin irritation (H315)
  • Very toxic to aquatic life (H400/H410)
  • Potential sensitiser in leave-on products

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.