PEG-40 Sorbitan Tetraoleate
AKA “PEG sorbitan tetraoleate
Surfactant
Ingredient Facts
Peg-40 sorbitan tetraoleate
AKA: PEG sorbitan tetraoleate
Surfactant · Emulsifying · EWG: 4
Synthetic
Cleanser
Emulsifier
Not Clean
1,4-Anhydro-D-glucitol, poly(oxy-1,2-ethanediyl) derivatives, tetraesters with 9-(Z)-octadecenoic acid (40 mol EO average molar ratio)
CAS #
9005-64-5
Form
Liquid
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsifier
Antioxidant Protection
Wound Healing
Mixes Oil & Water
Traditional Use
A modern synthetic emulsifier combining sorbitan with polyethylene glycol and multiple oleic acid molecules. Engineered for improved oil-water compatibility and stable emulsification in cosmetics.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
CANADApermitted
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR