Thickener
ETHYLENE/MALEIC ANHYDRIDE/PROPYLENE COPOLYMER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A ternary copolymer of ethylene, maleic anhydride, and propylene used as a viscosity controller. Once formulated and hydrolyzed it is inert, with the carboxylic-acid form providing pH-responsive thickening.
Function
Skin benefits
- Controls viscosity of cosmetic formulations
- Provides pH-responsive thickening
- Compatible with anionic systems
Known concerns
- Hydrolyzed maleic anhydride yields carboxylic groups requiring pH control
- Limited public toxicology data for this exact INCI
- Anhydride form can be a mild irritant before hydrolysis
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related thickeners
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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.