murphyPEG-30 Stearate
molecular structure · PubChem
AKA: Ethylene glycol monostearate, Glycol stearate, 111-60-4, 2-Hydroxyethyl octadecanoate, Monthybase, Monthyle, Parastarin, Ivorit, Sedetol, Glycol monostearate
Plant-Derived
Cleanser
Emulsifier
Clean
OriginDerived from stearic acid, a fatty acid typically sourced from animal fats or vegetable oils, combined with polyethylene glycol. Synthesized through esterification of stearic acid with polyethylene glycol, followed by ethoxylation to create the final surfactant.
Poly(oxy-1,2-ethanediyl), .alpha.-(1-oxooctadecyl)-.omega.-hydroxy- (30 mol EO average molar ratio)
Solubility POLYETHYLENE GLYCOL ESTERS AND ETHERS INCR THE WATER SOLUBILITY OF TYROTHRICIN.
Formula
C20H40O3
Mol. Weight
328.50
CAS #
9004-99-3
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Cleansing Surfactant
Emulsifier
Antioxidant Protection
Locks In Moisture
Reduces Inflammation
Removes Impurities
Mixes Oil & Water
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.
EWG
2
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on0.2%
Rinse-off0.2%
0%50%100%
CIR reported use · 2023 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR