Methacryloyloxypropyl Polysilsesquioxane

Methacryloyloxypropyl Polysilsesquioxane 1
AKA: Silicone Polymer, Film Former
Synthetic
Silicone
Not Clean
2-Propenoic acid, 2-methyl-, 3-(trimethoxysilyl)propyl ester, hydrolyzed
CAS #
160185-24-0
Form
Liquid
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.
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
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR