Phenyl Methicone
molecular structure · PubChem
AKA: Phenyl silicone, Phenylmethyl siloxane
Synthetic
Emollient
Skin Conditioner
Silicone
Clean
Polymethylphenyl siloxane
CAS #
31230-04-3, 63148-58-3
Form
Liquid
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
Traditional Use
Developed in the mid-20th century as a silicone-based polymer designed to improve the feel and spreadability of cosmetic products. Used in modern formulations as a conditioning agent and skin protectant with enhanced aesthetic properties compared to standard dimethicone.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR