Polymeric UV filter
METHOXYCINNAMIDOPROPYL POLYSILSESQUIOXANE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A polysilsesquioxane carrying a methoxycinnamate (octinoxate-like) UV-absorbing group, designed to stay on the skin surface. It offers photoprotection with reduced systemic absorption, though methoxycinnamate chemistry retains some sensitisation concerns.
Function
Skin benefits
- Silicone-bound UV filter chromophore for photoprotection
- Polymer-bound structure limits skin penetration
- Provides smooth, water-resistant film on skin
Known concerns
- Methoxycinnamate moiety can photodegrade and may cause photoallergy in sensitive users
- Limited public SCCS opinion specific to this polymer variant
- Environmental persistence of silicone backbone is debated
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.