murphyDiphenylsiloxy Phenyl Trimethicone
molecular structure · PubChem
AKA: Phenyl Silicone, Silicone Resin
Synthetic
Skin Conditioner
Hair Care
Clean
Silicones and siloxanes, diphenyl, trimethylsilyloxy phenyl, trimethylsilyl terminated
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Antifoaming
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
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 Sensitizer
2 studies / 2 not sensitizing (CIR 847)
Mixed Skin Irritation Results
4 studies / 1 mixed / 3 not irritating / reactions slight (CIR 847)
Mixed Eye Irritation Results
1 study / 1 mixed / reactions slight (CIR 847)
Concentration Guide
Leave-on0.3–19.9%
Rinse-off1–8.8%
0%50%100%
CIR reported use · report published 2023
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR