murphyPhenyl Methicone
molecular structure · PubChem
AKA: Phenyl silicone, Phenylmethyl siloxane
Synthetic
Emollient
Skin Conditioner
Clean
OriginPhenyl methicone is synthesized from dimethicone, a silicone polymer, through phenyl group substitution. The compound is produced by reacting polydimethylsiloxane with phenylmagnesium or phenyl reagents under controlled conditions.
Polymethylphenyl siloxane
CAS #
31230-04-3, 63148-58-3
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
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.
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant
1 study / 1 not irritating (CIR 847)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 847)
Mixed Eye Irritation Results
1 study / 1 mixed / reactions slight (CIR 847)
Concentration Guide
Leave-on0.28%
Rinse-offNot reported
0%50%100%
CIR reported use · report published 2023
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR