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Hair Conditioning

BUTYL ACRYLATE/ETHYLTRIMONIUM CHLORIDE METHACRYLATE/STYRENE COPOLYMER

65

Safety score · 0–100

Fine

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

A cationic copolymer used in deodorants, hair conditioners, and film-formers. The quaternary group binds to hair and skin for conditioning, but residual styrene and butyl acrylate monomers keep it in the cautious Fine band.

Function

DEODORANTFILM FORMINGHAIR CONDITIONING

Skin benefits

  • Cationic conditioning for hair and skin
  • Film-forming durability in deodorants and styling products
  • Improves substantivity to keratin surfaces
  • Multifunctional use across product types

Known concerns

  • Residual styrene monomer (IARC 2B)
  • Cationic groups can be mildly eye-irritating
  • Butyl acrylate is a known skin sensitizer
  • Microplastic environmental persistence

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.