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TEA-MYRISTATE

CAS 41669-40-3
58

Safety score · 0–100

Moderate

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

A triethanolamine salt of myristic acid used as an emulsifier in cosmetics, restricted under EU Annex III/62 due to secondary amine concerns that can form nitrosamines.

TEA-Myristate (Triosan, tris(2-hydroxyethyl)ammonium myristate) is listed in EU Annex III/62 of Cosmetics Regulation 1223/2009, which restricts the use of TEA (triethanolamine) and its salts in cosmetic products. The restriction relates to secondary amine content that can potentially form nitrosamines (N-nitrosodiethanolamine), which are known carcinogens. Maximum concentration limits apply, and use in cosmetic products near expiry is particularly restricted.

Skin benefits

  • Effective emulsifier for oil-water formulations
  • Improves product texture and stability

Known concerns

  • EU Annex III/62 restricted - secondary amine nitrosamine formation risk
  • Potential N-nitrosodiethanolamine (NDELA) formation
  • Maximum concentration limits apply
  • Skin irritation possible 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, so always read the physical product label and consult a healthcare professional for personal concerns.