PEG-20 Sorbitan Oleate
AKA “Polysorbate 80, Tween 80, Sorbitan Oleate PEG-20
Surfactant
Ingredient Facts
Peg-20 sorbitan oleate
AKA: Polysorbate 80, Tween 80, Sorbitan Oleate PEG-20
Surfactant · Cleansing · EWG: 2
Synthetic
Cleanser
Emulsifier
Plant Oil
Clean
Sorbitan, mono-9-octadecenoate, poly(oxy-1,2-ethanediyl) derivs., (Z)- (20 mol EO average molar ratio)
CAS #
9005-65-6
Form
Liquid
See origin →
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Surfactant Cleansing
Surfactant Emulsifying
Moisturizing
Strengthens Barrier
Removes dirt and impurities
Lifts away dirt and oil
Mixes oil and water
Traditional Use
Developed in the mid-20th century as a synthetic emulsifier combining polyethylene glycol with sorbitan and oleic acid (from olive oil). Created to stabilize oil-water mixtures in cosmetics and pharmaceuticals without relying on traditional natural emulsifiers.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR