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Emulsifier

TEA-ISOSTEARATE

CAS 88120-12-1
50

Safety score · 0–100

Moderate

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

A triethanolamine salt of isostearic acid, used as an emulsifier. The TEA portion can form nitrosamines if formulated with nitrosating ingredients — EU regulates this.

Function

CLEANSINGSURFACTANT - EMULSIFYINGHAIR CONDITIONINGSURFACTANT - CLEANSING

Skin benefits

  • Anionic emulsifier and cleansing agent
  • Compatible with broad pH range

Known concerns

  • TEA (triethanolamine) salt — can react with nitrosating agents to form nitrosamines
  • EU restricts TEA usage and prohibits nitrosating co-ingredients
  • Mild skin/eye irritant in leave-on 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.