Surface Treatment
TRIMETHOXYCAPRYLYLSILANE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A silicone surface-treatment used to coat sunscreen minerals and pigments — makes them spread better, feel silkier, and reduces photoreactivity of titanium dioxide. Cures into a stable layer; very safe in finished products.
Skin benefits
- Hydrophobic coating for mineral pigments and TiO2/ZnO sunscreens
- Improves dispersion and sensory feel of powders
- Reduces photoreactivity of titanium and zinc oxides
- Long established safety profile
Known concerns
- Releases methanol on hydrolysis — formulators must ensure proper curing
- Not typically encountered as a free ingredient
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related surface treatments
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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.