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Thickener

AMPS/HEMA CROSSPOLYMER

62

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

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

VISCOSITY CONTROLLING

Known concerns

  • EU Annex III restricted (III/33)
  • residual HEMA monomer is a known skin sensitizer
  • may cause allergic contact dermatitis

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.