PEG-6 Methyl Ether
molecular structure · PubChem
AKA: 23601-40-3, 2, 5, 8, 11, 14, 17-Hexaoxanonadecan-19-ol, 3, 9, 12, 15, 18-Hexaoxanonadecan-1-ol, Hexaethylene glycol monomethyl ether, M-PEG6-alcohol, MPEG6-OH, 2-[2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethanol
Synthetic
Solvent
Clean
Poly(oxy-1,2-ethanediyl), .alpha.-methyl-.omega.-hydroxy- (6 mol EO average molar ratio)
Formula
C13H28O7
Mol. Weight
296.36
CAS #
9004-74-4
Form
Liquid
Functions
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Moisturizing
Strengthens Barrier
Dissolves other ingredients
Traditional Use
A synthetic ether developed in the 20th century for use as a humectant and solvent in cosmetics. Created to provide hydration and improve product stability in modern formulations without a traditional botanical equivalent.
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR