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Hair Conditioning

SILICONE QUATERNIUM-30

68

Safety score · 0–100

Fine

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

A quaternized silicone used in hair conditioners and leave-ins. Generally well-tolerated; main considerations are buildup on fine hair and mild eye irritation.

Function

HAIR CONDITIONING

Skin benefits

  • Hair antistatic and conditioning
  • Smoothness and slip
  • Color-treated hair friendly

Known concerns

  • Cationic — can build up on hair
  • Possible mild eye irritation
  • Limited public toxicology data

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.