Specimen No. 0029
CautionSyntheticantimicrobialsurfactant
Cetrimonium Chloride
cetrimonium chloride · ctac · cetyltrimethylammonium chloride
Quaternary ammonium salt used as a conditioning agent and preservative. At cosmetic concentrations it is generally safe, but has cytotoxic potential at higher doses.
medium confidence
Researched April 18, 2026Specimen 0029Cetrimonium Chloride
Concerns
- Cytotoxic at high concentrations — damages cell membranes
- Skin sensitization possible in individuals with sensitive skin
- Antimicrobial — may disrupt skin microbiome with frequent use
- Environmental toxicity to aquatic organisms
Commonly found in
ConditionerLeave-in hair treatmentStyling productSkin toner
Sources & references
Last researched: April 18, 2026
Research disclaimer: This rating is based on available peer-reviewed research and regulatory assessments at the time of publication. It is not medical advice. Consult a qualified professional for personal health or skin concerns.
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