murphyBis-PEG-8 Dimethicone
molecular structure · PubChem
AKA: Silicone Modifier, Modified Dimethicone
Synthetic
Cleanser
Skin Conditioner
Hair Care
Silicone
Clean
OriginDerived from dimethicone siloxane polymers and polyethylene glycol starting materials. Synthesized by coupling dimethicone with polyoxyethylene chains through chemical reaction.
Silicones and siloxanes, dimethyl, hydropolyoxyethylene terminated (8 mol EO average molar ratio)
CAS #
102783-01-7 (generic)
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.
Plasticiser
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.
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
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2014
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR