PEG-4 Methyl Ether
AKA “11-Tetraoxatridecan-13-ol, Tetraethylene glycol monomethyl ether, DTXCID507829, RefChem:1099661, Tetraethyleneglycol monomethyl ether, m-PEG4-alcohol, mPEG4-OH, 12-Tetraoxatridecan-1-ol”
Synthetic
Ingredient Facts
Peg-4 methyl ether
AKA: 11-Tetraoxatridecan-13-ol, Tetraethylene glycol monomethyl ether, DTXCID507829, RefChem:1099661, Tetraethyleneglycol monomethyl ether, M-PEG4-alcohol, MPEG4-OH, 12-Tetraoxatridecan-1-ol
Synthetic · Humectant · EWG: 4
Synthetic
Humectant
Solvent
Skin Conditioner
Synthetic
Clean
A gentle humectant that draws moisture into skin and helps formulas blend smoothly for better application and absorption.
Solubility Solubility in water: miscible
Formula
C9H20O5
Mol. Weight
208.25
CAS #
9004-74-4
Form
Liquid
State
Liquid
See origin →
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.
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Moisturising
Locks In Moisture
Traditional Use
Synthetic polyethylene glycol derivative developed in the mid-20th century. Used in cosmetics as a solvent and humectant to improve product texture and water-binding properties.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe w/Qualifications
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR