Emulsifier
TRIETHANOLAMINE SESQUISTEARATE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A triethanolamine-stearic acid soap used as an emulsifier. Triethanolamine can react with nitrosating impurities to form NDELA, a probable carcinogen — so it is restricted in the EU to controlled rinse-off use.
Function
Skin benefits
- Self-emulsifying base for creams and lotions
- Pearlescent texture in stearate soaps
- Conditions skin via stearic acid moiety
Known concerns
- TEA can form N-nitrosodiethanolamine (NDELA) if combined with nitrosating agents — IARC 2B carcinogen
- EU SCCS recommends TEA only in rinse-off or with strict nitrosamine controls
- Possible skin irritation at higher use levels
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related emulsifiers
Check your shelf
Find TRIETHANOLAMINE SESQUISTEARATE in your products.
Scan any cosmetic product with LuxSense to see if it contains TRIETHANOLAMINE SESQUISTEARATE and get a full ingredient breakdown with safety scores.
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.