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Conditioning agent

TREHALOSE HYDROXYPROPYLTRIMONIUM CHLORIDE

CAS -
78

Safety score · 0–100

Fine

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

A sugar derived quaternary ammonium conditioner combining trehalose with a trimonium group. Used in hair and skin formulas for antistatic softness and easy combing, with a milder profile than older quats.

Skin benefits

  • Cationic conditioning agent that smooths hair and skin
  • Carries trehalose moiety known for moisture retention
  • Antistatic, reducing flyaways and frizz
  • Helps with combability and softness in rinse off products

Known concerns

  • Quaternary ammonium group can be mildly irritating to eyes
  • Limited independent peer reviewed safety reviews
  • Build up possible on hair with heavy repeated use

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, so always read the physical product label and consult a healthcare professional for personal concerns.