Polymethylsilsesquioxane/Trimethylsiloxysilicate
molecular structure · PubChem
AKA: Silicone Resin, Silicone Elastomer
Synthetic
Silicone
Not Clean
Polymethylsilsesquioxane/Trimethylsiloxysilicate is the product of the reaction of Polymethylsilsesquioxane and Trimethylsiloxysilicate
CAS #
-
Form
Powder
Functions
Not Reported
Creates silky smooth texture
Provides lightweight skin feel
Helps improve product spreadability
Traditional Use
Developed from silicone chemistry in the mid-20th century. Originally created for industrial applications before adoption in cosmetics as a silky texture-enhancer and mattifying agent.
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.
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Verified Jun 2026
Data: CosIng · EWG · CIR