murphyPEG-40 Methyl Ether
molecular structure · PubChem
AKA: Polyethylene Glycol 40 Methyl Ether, Methoxypolyethylene Glycol 40
Synthetic
Solvent
Not Clean
OriginDerived from ethylene oxide and methanol through synthetic organic chemistry processes. Synthesized by polymerization of ethylene oxide followed by methylation of the resulting polyethylene glycol.
PEG-40 Methyl Ether is the polyethylene glycol ether of Methyl Alcohol.
CAS #
9004-74-4
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Dissolves Ingredients
Antioxidant Protection
Wound Healing
Dissolves other ingredients
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
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR