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Hair Conditioning

QUATERNIUM-90

Updated
55

Safety score · 0–100

Moderate

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

About

Quaternium-90 — a quaternary ammonium hair conditioning agent. Effective antistatic, but quats are typically eye/mucosal irritants and persist in waterways, so use is concentration-controlled.

Function

ANTISTATIC

Skin benefits

  • Antistatic action
  • Hair conditioning
  • Substantive deposition

Known concerns

  • Aquatic persistence
  • Eye and mucosal irritation potential
  • Limited dossier

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.