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METHOXYCINNAMIDOPROPYL/PHENYL POLYSILSESQUIOXANE

80

Safety score · 0–100

Good

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A phenyl-silsesquioxane silicone polymer with a tethered methoxycinnamate UV absorber — stabilizes formulations against light. Polymer-bound design reduces the skin absorption concerns of free octinoxate.

Function

ANTIOXIDANTFILM FORMINGSKIN CONDITIONINGSKIN PROTECTINGLIGHT STABILIZER

Skin benefits

  • Built-in UV absorption for product stability
  • Polymer-bound — minimal skin penetration
  • Improves photostability of sensitive actives

Known concerns

  • Methoxycinnamate moiety is a known photoreactive group (off-polymer)
  • Phenyl silsesquioxane purity varies
  • Limited public toxicology data for this specialty INCI

References

EU

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.