PEG-6 Dioleate
Synthetic
Ingredient Facts
Peg-6 dioleate
Synthetic · Emulsifying · EWG: 4
Synthetic
Cleanser
Emulsifier
Synthetic
Clean
Helps blend oil and water-based ingredients together, creating a smooth, even texture in formulas so products apply seamlessly to skin.
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]
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Viscosity Controlling
Surfactant Emulsifying
Moisturizing
Locks in moisture to keep skin soft and supple throughout the day
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.
Skin Types
all-skin-types
Best For
General
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 Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR