Surfactant
SOYAMIDE DEA
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A foam booster from soy fatty acids reacted with diethanolamine. DEA-class amides are restricted in the EU and California Prop 65-listed because they can form carcinogenic nitrosamines with nitrosating co-ingredients.
Function
Skin benefits
- Boosts foam in shampoos and body washes
- Increases viscosity
- Compatible with anionic surfactant systems
Known concerns
- DEA-class nitrosamine formation risk
- EU Cosmetic Regulation restricts free DEA
- Soya-allergen carryover possible
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related surfactants
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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.