Methoxy PEG-7

AKA: Polyethylene Glycol Methyl Ether
Synthetic
Humectant
Solvent
Not Clean
OriginDerived from polyethylene glycol (PEG), a synthetic polymer made from ethylene oxide, combined with methoxy groups. Synthesized through the polymerization of ethylene oxide followed by methoxylation to create the PEG-7 derivative.
Polyethylene Glycol (7) Monomethyl Ether
CAS #
9004-74-4
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
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
CIR lists it as not reported to be in use.
CIR · report published 2012
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR