Skip to content

Antimicrobial

QUATERNIUM-24

CAS 32426-11-2
35

Safety score · 0–100

Caution

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

A benzyl-substituted quaternary ammonium antimicrobial. Effective preservative but corrosive in concentrate, a sensitizer and severely toxic to aquatic life.

Function

ANTIMICROBIALANTISTATICSURFACTANT - CLEANSING

Skin benefits

  • Preserves rinse-off products
  • Conditions and detangles hair
  • Antistatic

Known concerns

  • Skin/eye corrosion in concentrate
  • Sensitizer
  • Aquatic toxicity
  • Restricted use levels

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related antimicrobials

35
ACETAMINOSALOL
Antimicrobial
 35
BENZOYL PEROXIDE
Antimicrobial
 35
CLOTRIMAZOLE
Antimicrobial
 35
ISOPROPYLCARBONATE BENZOYL PEROXIDE
Antimicrobial
 35
SILVER BENZOATE
Antimicrobial
 35
SODIUM USNATE
Antimicrobial
 35
UREA PEROXIDE
Antimicrobial
 38
AZADIRACHTA INDICA BARK/SEED EXTRACT
Antimicrobial

Check your shelf

Find QUATERNIUM-24 in your products.

Scan any cosmetic product with LuxSense to see if it contains QUATERNIUM-24 and get a full ingredient breakdown with safety scores.

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.