Thickener
AMPS/HEMA CROSSPOLYMER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A crosslinked polymer thickener used to control product texture and viscosity. Subject to EU restrictions due to residual HEMA content.
AMPS/HEMA Crosspolymer is made from 2-acrylamido-2-methylpropanesulfonic acid and hydroxyethyl methacrylate (HEMA), crosslinked with methylenebisacrylamide. Listed under EU Annex III/33, which restricts residual HEMA monomer levels due to its known skin sensitization potential. The polymerized form is generally safe, but residual monomer content must be controlled.
Function
Known concerns
- EU Annex III restricted (III/33)
- residual HEMA monomer is a known skin sensitizer
- may cause allergic contact dermatitis
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.