Antimicrobial
DIDECYLDIMONIUM CHLORIDE
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A long-chain quaternary ammonium biocide. Strong antimicrobial but corrosive to skin and eyes in concentrate, an environmental toxicant, and a known sensitizer.
Function
Skin benefits
- Strong broad-spectrum disinfectant
- Hair conditioning at low ppm
Known concerns
- Skin and eye corrosion
- Sensitization and asthma triggers
- Acute oral/dermal toxicity
- Severe aquatic toxicity
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related antimicrobials
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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.