QUATERNIUM-18 HECTORITE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Quaternium-18 Hectorite is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.
Quaternium-18 Hectorite is an organoclay produced by treating naturally occurring hectorite bentonite with quaternary ammonium salts (typically from hydrogenated tallow). This modification makes it organophilic and compatible with cosmetic formulations. It functions as a suspending agent, viscosity modifier, and emulsion stabiliser. No specific restrictions apply to quaternium-18 hectorite under EU Regulation 1223/2009 beyond standard cosmetic safety provisions. Its use is well established in foundations, powders, and emulsion-based skin care products.
Known concerns
- Quaternary ammonium compound - mild sensitisation potential at high concentrations
- Generally safe for cosmetic use
- Used as suspending agent and viscosity controller
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.