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Esterquat hair conditioner

LAUROYL ETHYLTRIMONIUM METHOSULFATE

CAS 851385-89-2
72

Safety score · 0–100

Fine

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

A lauric-acid-derived esterquat used to soften and detangle hair. It conditions effectively at low levels and is generally well tolerated, with routine quat sensitivity considerations.

Function

CLEANSING, SURFACTANT - CLEANSING

Skin benefits

  • Effective hair-conditioning esterquat
  • Reduces static and improves manageability
  • Esterquat backbone biodegrades more readily than alkyl quats
  • Mild on skin and scalp at use levels

Known concerns

  • Quaternary ammonium chemistry can irritate eyes
  • Possible sensitizer in a small subset of users
  • Limited public dermatology data on this specific INCI

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.