murphyBis-PEG-15 Methyl Ether Dimethicone
molecular structure · PubChem
AKA: Silicone Modifier, Modified Dimethicone
Synthetic
Cleanser
Emulsifier
Skin Conditioner
Hair Care
Silicone
Clean
OriginDerived from dimethicone, a silicone polymer, combined with polyethylene glycol (PEG) units. Synthesized through ethoxylation of dimethicone followed by methylation to create a hybrid silicone-glycol compound.
Bis-Peg-15 Methyl Ether Dimethicone is the methyl ether of a derivative of Dimethicone end-blocked with an average of 15 moles of ethylene oxide
Form
Liquid
Skin Types
●all-skin-types, gentle
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
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.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Locks in moisture
The paper trail
🔬Peer-reviewed1 paper →
⚖️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 an Eye Irritant
1 study / 1 not irritating (CIR 664)
Not a Skin Irritant
1 study / 1 not irritating (CIR 664)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 664)
Concentration Guide
Leave-on1–1.5%
Rinse-offNot reported
0%50%100%
CIR reported use · report published 2014
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR