Other
ISOSTEARAMIDOPROPYL BETAINE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A gentle amphoteric surfactant with a branched C18 isostearic acid backbone, offering excellent foaming and cleansing with low irritation profile.
An isostearic acid (C18 branched, derived from hydrogenated unsaturated fatty acids) amidopropyl betaine, functioning as an amphoteric surfactant. The branched-chain isostearyl moiety provides excellent foaming performance with low potential for skin irritation. Used as a primary or secondary surfactant in facial cleansers, body washes, and shampoos, especially those marketed for sensitive skin. No EU Annex restrictions identified for this compound class. Betaines are widely regarded as among the mildest cosmetic surfactants available.
Skin benefits
- Gentle effective cleansing
- Stable rich lather
- Reduces irritation from co-formulated anionic surfactants
- Good for sensitive skin formulations
Known concerns
- Generally considered very mild; minimal sensitization risk
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related others
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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.