Methoxycinnamidopropyl/Phenyl Polysilsesquioxane
INCI: METHOXYCINNAMIDOPROPYL/PHENYL POLYSILSESQUIOXANE
Reviewed by Kate · Last updated 18 Aug 2026
What Is Methoxycinnamidopropyl/Phenyl Polysilsesquioxane?
Methoxycinnamidopropyl/Phenyl Polysilsesquioxane is the silicone polymer.
Its declared cosmetic functions are antioxidant, film forming, skin conditioning, skin protecting and stabilising.
Source: European Commission CosIng inventory.
From the Clinic
Not sure what your skin actually needs?
Two minutes, a few questions, and we’ll point you at what matters — no guesswork.
Take the skin quizRelated Ingredients
Licorice … Stem Extract
Plant extract with antioxidant properties to help protect skin from environmental stress
3-Ethylhexylglyceryl Ascorbate
A stabilised vitamin C derivative that works as an antioxidant and humectant
3-Glyceryl Ascorbate
A stabilised form of vitamin C that works as an antioxidant and hydrating agent
3-O Ethyl Ascorbic Acid
A more stable derivative of pure vitamin C Capable of helping fade dark spots
4-Butylresorcinol
A tyrosinase inhibitor that works to reduce melanin production at the source
4-Isobutylresorcinol
A synthetic antioxidant that helps protect skin from oxidative stress and environmental damage
Learn More About Skincare Ingredients
Explore our comprehensive ingredient glossary to understand what's in your products.
Browse All IngredientsShop Our Products
Find professional skincare solutions at Skintique.