Chelating Agent
CYCLO PEG-6
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
18-crown-6, a cyclic polyether that traps potassium ions. Useful as a chemical tool but not a benign humectant — animal data show real systemic toxicity, so cosmetic use should be very limited and well-justified.
Function
Skin benefits
- Chelates cations to stabilize sensitive actives
- Can improve solubility of certain salts
- Niche use in specialty formulations
Known concerns
- Strong potassium ion binding linked to systemic toxicity in animal studies
- Acute oral toxicity reported for crown ethers
- Not a typical cosmetic-grade humectant; very limited cosmetic safety review
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related chelating agents
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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.