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Emulsifier (DEA salt)

DEA-CETEARETH-2 PHOSPHATE

CAS 162567-77-3
32

Safety score · 0–100

Caution

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

Diethanolamine salt of cetearyl phosphate used as an emulsifier. DEA compounds carry a risk of nitrosamine formation and are restricted in EU cosmetics, with the related DEA salt listed under California Proposition 65.

Skin benefits

  • Acts as an emulsifier and emulsion stabilizer in older formulations
  • Phosphate ester provides good emulsion durability

Known concerns

  • Contains a diethanolamine (DEA) salt counterion
  • DEA can react with nitrosating agents to form carcinogenic nitrosamines
  • DEA compounds are restricted or prohibited in EU cosmetic products
  • Listed on California Proposition 65 since 2012 for carcinogenicity concerns
  • Modern formulations typically replace DEA salts with safer alternatives

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.