murphyPEG/PPG-19/19 Dimethicone
molecular structure · PubChem
AKA: Silicone Glycol Copolymer, Dimethicone Copolyol
Synthetic
Cleanser
Emulsifier
Silicone
Clean
OriginDerived from dimethicone siloxane polymers combined with polyethylene glycol and polypropylene glycol chains. Synthesized through etherification and polymerization reactions linking silicone backbones with ethoxy and propoxy groups.
Siloxanes and silicones, dimethyl, 3-hydroxypropyl methyl, ethoxylated, propoxylated (19 mol EO, 19 mol PO average molar ratio)
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsifier
Mixes Oil & Water
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
2
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 664)
Skin Irritant in Testing
1 study / 1 irritating (CIR 664)
Concentration Guide
Leave-on0.32–10.7%
Rinse-offNot reported
0%50%100%
CIR reported use · 2014 survey
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR