Phenyl Methicone
AKA “Phenyl silicone, Phenylmethyl siloxane
Emollient
Ingredient Facts
Phenyl methicone
AKA: Phenyl silicone, Phenylmethyl siloxane
Emollient · Emollient · EWG: 2
Synthetic
Emollient
Skin Conditioner
Silicone
Clean
Polymethylphenyl siloxane
CAS #
31230-04-3, 63148-58-3
Form
Liquid
See origin →
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
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR