PEG-8 Dioleate
Synthetic
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Ingredient Facts
Peg-8 dioleate
Synthetic · Surfactant - Emulsifying | Viscosity Controlling · EWG: 4
Plant-Derived
Cleanser
Emulsifier
Synthetic
Not Clean
Helps blend oil and water-based ingredients together, creating a smooth, unified texture in skincare and cosmetic formulas.
Formula
C38H70O4
Mol. Weight
591.00
CAS #
9005-07-6
Form
Liquid
Plant-Derived
Synthetic. Derived from polyethylene glycol (PEG) and oleic acid, a fatty acid from vegetable oils. Synthesized through esterification of PEG-8 with dioleic acid under catalytic conditions.
Function
Surfactant - Emulsifying | Viscosity Controlling
Benefits
Emulsifier
Reduces Inflammation
Locks In Moisture
Fights Bacteria
Mixes Oil & Water
Traditional Use
Developed in the mid-20th century as a polyethylene glycol-based synthetic emulsifier. Created to stabilize oil-and-water mixtures in cosmetics where traditional emulsifiers were insufficient.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score4
CIR Safety Findings
medical-approval, all-shades-safe, Not a Sensitizer
Regulatory Agencies
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR