PEG-12 Dioleate

PEG-12 Dioleate molecular structure
molecular structure · PubChem
AKA: 2-((9Z)-octadec-9-enoyloxy)ethyl (9Z)-octadec-9-enoate, 2-Ethanediyl dioleate, Ethylene glycol dioleate, Dioleoyl ethylene glycol
Synthetic
Cleanser
Emulsifier
Not Clean
Poly(oxy-1,2-ethanediyl), .alpha.-(1-oxo-9-octadecenyl)-.omega.-[(1-oxo-9-octadecenyl)oxy]-, (Z,Z)- (12 mol EO average molar ratio)
CAS #
9005-07-6, 52668-97-0
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
Traditional Use
A synthetic ester created by reacting polyethylene glycol with oleic acid in the 20th century. Developed as an emulsifier and conditioning agent for cosmetic and personal care formulations.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR