PEG/PPG-50/40 Dimethyl Ether

PEG/PPG-50/40 Dimethyl Ether molecular structure
molecular structure · PubChem
AKA: Dimethyl ether copolymer, Silicone humectant
Synthetic
Skin Conditioner
Not Clean
OriginSynthesized from ethylene oxide and propylene oxide monomers, combined with dimethyl ether as a starting material. Produced through catalytic polymerization of the oxide monomers followed by etherification to create the final polymer compound.
Methyloxirane, polymer with oxirane, dimethyl ether (50 mol EO, 40 mol PO average)
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
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-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on0.05%
Rinse-off0.4–2%
0%50%100%
CIR reported use · report published 2016
Regulatory Status
USA✔ permitted
CANADA✔ permitted
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR