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Hair Conditioning

STEARALKONIUM CHLORIDE

CAS 122-19-0 Updated
62

Safety score · 0–100

Fine

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

About

A quaternary ammonium conditioning agent — mostly in hair products to reduce static and tame frizz. EU-restricted with use levels capped because cationic surfactants can irritate at higher concentrations.

Skin benefits

  • Effective hair conditioning - smooths cuticle
  • Reduces static and improves comb-through
  • Stable across pH range
  • Long established hair-care use

Known concerns

  • Cationic surfactant - irritation potential on broken skin
  • EU concentration limits in rinse-off (up to 5%)
  • Eye irritant at higher %
  • Not recommended for sensitive scalp

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.