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Hair Conditioning

SILICONE QUATERNIUM-9

78

Safety score · 0–100

Fine

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

A quaternized silicone polymer used for hair and skin conditioning — its cationic charge sticks to damaged hair to deliver durable softness and anti-static. Similar safety profile to other silicone quats; main caveat is buildup.

Function

ANTISTATICHAIR CONDITIONING

Skin benefits

  • Strong hair conditioning, anti-static
  • Improves wet/dry comb
  • Durable cationic deposition
  • Low irritation as polymeric quat

Known concerns

  • Buildup with repeated use
  • Mild eye irritation potential (cationic)

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.