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Hair Conditioning

POLYQUATERNIUM-49

CAS - Updated
70

Safety score · 0–100

Fine

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

About

A cationic conditioning polymer that smooths and detangles hair. Polyquats are generally safe at cosmetic concentrations with mild buildup concerns.

Skin benefits

  • Cationic conditioning polymer reduces static and tangles
  • Improves wet combability and softness
  • Substantive to damaged hair via cationic charge

Known concerns

  • Polyquaterniums can build up on hair with repeated use
  • Trace residual monomers possible
  • Rinse-off recommended over leave-on at high %

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 — always read the physical product label and consult a healthcare professional for personal concerns.