murphyGlycereth-18
molecular structure · PubChem
AKA: PEG-18 Glyceryl Ether, Polyethylene Glycol Glyceryl Ether
Synthetic
Humectant
Skin Conditioner
Clean
Glycereth-18 is a polyethylene glycol ether of glycerin containing an average of 18 moles of ethylene oxide
CAS #
-
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
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.
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-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on0.019–0.3%
Rinse-off0.3–0.32%
0%50%100%
CIR reported use · report published 2025
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR