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Hair Conditioning

POLYQUATERNIUM-33

CAS 69418-26-4
60

Safety score · 0–100

Fine

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

A positively charged acrylamide-based conditioning polymer for hair. The polymer itself is well-tolerated, but residual acrylamide monomer (a probable carcinogen) is the regulatory flag and is capped under EU rules.

Function

ANTISTATICFILM FORMING

Skin benefits

  • Reduces static and frizz on hair
  • Forms light conditioning film
  • Improves wet and dry combability
  • Anti-static effect

Known concerns

  • Cationic polymer — eye irritation potential at higher levels
  • Residual acrylamide monomer if poorly purified
  • EU limits residual acrylamide content
  • Quaternary ammonium can sensitise rare individuals

References

EU

EU CosIng database

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

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C10-40 ISOALKYLAMIDOPROPYLETHYLDIMONIUM ETHOSULFATE
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CETEARYL BETAINATE MESYLATE
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CETYLDIMETHYLAMINE HYDROLYZED HEMPSEEDATE
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COCO-ETHYLDIMONIUM ETHOSULFATE
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DIAMINOPYRIMIDINE OXIDE
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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.