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Methacryloyloxypropyl Polysilsesquioxane
AKA “Silicone Polymer, Film Former”
Ingredient
Ingredient Facts
Methacryloyloxypropyl polysilsesquioxane
AKA: Silicone Polymer, Film Former
Ingredient · Abrasive · EWG: 4
Synthetic
Silicone
Not Clean
2-Propenoic acid, 2-methyl-, 3-(trimethoxysilyl)propyl ester, hydrolyzed
CAS #
160185-24-0
Form
Liquid
See origin →
Functions
Abrasive
Physical Exfoliant
Gently polishes surface
Traditional Use
Advanced silicone-based polymer developed in the late 20th century for cosmetics to provide water resistance, film-forming properties, and improved texture in makeup and skincare formulations.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Structural Similarity-Induced Inter-Component Interaction in Silicone Polymer-Based Composite Sunscreen Film for Enhanced UV Protection.
Chen Y, Xu H, Liu Y, Fu Q, Zhang P et al.
Polymers, 2024
→
Structural Similarity-Induced Inter-Component Interaction in Silicone Polymer-Based Composite Sunscreen Film for Enhanced UV Protection.
Chen Y, Xu H, Liu Y, Fu Q, Zhang P et al.
Polymers, 2024
→
Structural Similarity-Induced Inter-Component Interaction in Silicone Polymer-Based Composite Sunscreen Film for Enhanced UV Protection.
Chen Y, Xu H, Liu Y, Fu Q, Zhang P et al.
Polymers, 2024
→
Structural Similarity-Induced Inter-Component Interaction in Silicone Polymer-Based Composite Sunscreen Film for Enhanced UV Protection.
Chen Y, Xu H, Liu Y, Fu Q, Zhang P et al.
Polymers, 2024
→
Structural Similarity-Induced Inter-Component Interaction in Silicone Polymer-Based Composite Sunscreen Film for Enhanced UV Protection.
Chen Y, Xu H, Liu Y, Fu Q, Zhang P et al.
Polymers, 2024
→
Methacryloyloxypropyl Polysilsesquioxane
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Verified Jun 2026
Data: CosIng · EWG · CIR