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DIOLEOYLETHYL HYDROXYETHYLMONIUM METHOSULFATE

CAS 155042-51-6
52

Safety score · 0–100

Moderate

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

About

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

This diquaternary ammonium salt has two oleoyl groups attached to an ethyl hydroxyethyl quaternary ammonium center with methosulfate counterion. The dual hydrophobic chains make it a substantive conditioning agent for skin and hair. H315 (skin irritation) and H319 (eye irritation) hazard statements are assigned. Diquaternary ammonium compounds are documented mild-to-moderate skin sensitizers, which is the primary factor limiting this ingredient's safety score.

Skin benefits

  • Skin conditioning agent
  • Provides substantive softening and lubrication

Known concerns

  • H315 skin irritation hazard
  • H319 eye irritation hazard
  • Mild skin sensitization from diquaternary ammonium structure
  • Limited EU-specific regulatory data

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.