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HYDROXYSTEARAMIDOPROPYL TRIMONIUM CHLORIDE

CAS 127312-01-0
78

Safety score · 0–100

Fine

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

About

Hydroxystearamidopropyl Trimonium Chloride is a cosmetic ingredient used in product formulations. Its specific function may vary between products. Exercise caution due to limited available safety data.

A hydroxy-substituted C18 quaternary ammonium salt derived from 12-hydroxystearic acid (castor oil fatty acid derivative). The hydroxyl group increases polarity and provides additional moisturizing character, making it substantive to both hair and skin. Functions as an effective conditioning and antistatic agent. The hydroxystearyl chain is a recognized cosmetic ingredient with no specific EU Annex II or III restriction. The hydroxyl functionality may offer some improvement in moisturization versus non-hydroxy quaternary conditioning agents.

Skin benefits

  • Conditions and moisturizes hair and skin simultaneously
  • Softens hair fiber
  • Reduces static and flyaway

Known concerns

  • Generally mild; theoretical irritation at high concentrations

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.