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Preservative

Benzalkonium chloride, bromide and saccharinate (9)

CAS 91080-29-4 / 63449-41-2 / 68391-01-5 / 68424-85-1 / 85409-22-9 / 68989-01-5 Updated
35

Safety score · 0–100

Caution

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

About

Benzalkonium quaternary salts used as preservatives. Effective antimicrobials but EU Annex III caps levels because they irritate eyes and skin and can sensitize.

Skin benefits

  • Broad-spectrum quaternary ammonium preservative
  • Effective antimicrobial in rinse-off

Known concerns

  • EU Annex III concentration cap (0.1% as benzalkonium)
  • Eye irritant
  • Skin sensitizer
  • Not for spray products near airways

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.