PEG-6 Dioleate
molecular structure · PubChem
AKA: 9005-07-6, 2-[(9Z)-OCTADEC-9-ENOYLOXY]ETHYL (9Z)-OCTADEC-9-ENOATE
Synthetic
Cleanser
Emulsifier
Not Clean
Poly(oxy-1,2-ethanediyl), .alpha.-(1-oxo-9-octadecenyl)-.omega.-[(1-oxo-9-octadecenyl)oxy]-, (Z,Z)- (6 mol EO average molar ratio)
Formula
C38H70O4
Mol. Weight
591.00
CAS #
9005-07-6
Form
Liquid
State
Lemon to orange oily liquid or semi-gel with a mild odor; [JECFA] Liquid; mp = 15 deg C; [Sigma-Aldrich MSDS]
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Surfactant Emulsifying
Moisturizing
Strengthens Barrier
Mixes oil and water
Traditional Use
A synthetic ester emulsifier developed in the 20th century combining PEG with oleic acid (found in various plant oils). Created for stable modern cosmetic formulations replacing traditional plant emulsifiers.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR