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Thickener

SODIUM ACRYLIC ACID/MA COPOLYMER

CAS 52255-49-9
74

Safety score · 0–100

Fine

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

A sodium-neutralized copolymer of acrylic and maleic acid. Used as a thickener and chelator. Polymer size keeps skin absorption negligible; main caveat is environmental persistence.

Function

VISCOSITY CONTROLLING

Skin benefits

  • Effective thickener and dispersant
  • Stabilizes emulsions
  • Polymer size limits skin absorption
  • Common in dental and skincare formulas

Known concerns

  • Possible trace maleic anhydride residue
  • Not readily biodegradable

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.