PEG-12 Stearate

PEG-12 Stearate molecular structure
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
Not Clean
OriginTypically derived from coconut, palm kernel, or soybean oils as the starting material. Synthesized through ethoxylation and esterification of stearic acid with polyethylene glycol.
Poly(oxy-1,2-ethanediyl), .alpha.-(1-oxooctadecyl)-.omega.-hydroxy- (12 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
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsifier
Mixes Oil & Water
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not an Eye Irritant
1 study / 1 not irritating (CIR 211)
Skin Irritant in Testing
1 study / 1 irritating (CIR 211)
Concentration Guide
Leave-on1.8%
Rinse-off1.2%
0%50%100%
CIR reported use · 2023 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR