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Hair Conditioning

POLYQUATERNIUM-109

68

Safety score · 0–100

Fine

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

A cationic conditioning polymer used in shampoos and conditioners. Polyquaternium-class is generally well-tolerated; this specific number lacks a public CIR review.

Function

HAIR CONDITIONING

Skin benefits

  • Cationic conditioning polymer
  • Reduces static and adds slip in hair products
  • Substantive to skin and hair

Known concerns

  • Quaternary ammonium polymers can mildly irritate eyes
  • No CIR opinion specific to PQ-109
  • Polyquats persist in environment

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.