Preservative / Antiseptic
Benzenemethanaminium, N,N-dimethyl-N-[2-[2-[4-(1,1,3,3,-tetramethylbutyl)phenoxy]ethoxy]ethyl]-, chloride
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Benzethonium chloride is a quaternary ammonium antiseptic and preservative. The EU caps it at 0.1 percent in cosmetics and bans it from oral hygiene products; it can irritate skin and eyes at higher levels.
Skin benefits
- Broad-spectrum quaternary ammonium preservative and antiseptic
- Effective at low concentrations against bacteria and yeasts
- Used in some rinse-off and OTC topical products
Known concerns
- EU restricts use: max 0.1 percent as preservative, banned in oral hygiene
- Skin and eye irritation potential
- Sensitization reports in case literature
- Aquatic toxicity to non-target organisms
References
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, so always read the physical product label and consult a healthcare professional for personal concerns.