PEG-12 Dioleate
AKA “2-((9Z)-octadec-9-enoyloxy)ethyl (9Z)-octadec-9-enoate, 2-Ethanediyl dioleate, Ethylene glycol dioleate, Dioleoyl ethylene glycol”
Synthetic
Ingredient Facts
Peg-12 dioleate
AKA: 2-((9Z)-octadec-9-enoyloxy)ethyl (9Z)-octadec-9-enoate, 2-Ethanediyl dioleate, Ethylene glycol dioleate, Dioleoyl ethylene glycol
Synthetic · Emollient · EWG: 4
Synthetic
Emollient
Cleanser
Emulsifier
Skin Conditioner
Synthetic
Clean
A gentle emulsifier that helps blend oil and water-based ingredients together, creating a smooth, unified texture in skincare and cosmetic formulas.
CAS #
9005-07-6, 52668-97-0
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
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.
Skin Types
●all-skin-types
Best For
Dryness
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: CosIng · EWG · CIR