murphyMethacryloyloxypropyl Polysilsesquioxane
AKA: Silicone Polymer, Film Former
Synthetic
Not Clean
OriginSynthesized from silsesquioxane compounds, a class of hybrid organic-inorganic polymers derived from silicone chemistry. Produced through sol-gel polymerization of silicone precursors with methacrylate functional groups attached.
2-Propenoic acid, 2-methyl-, 3-(trimethoxysilyl)propyl ester, hydrolyzed
CAS #
160185-24-0
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Abrasive
Physical Exfoliant
Gently polishes surface
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.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Skin Irritant in Testing
1 study / 1 irritating (CIR 743)
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2017
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR