Oleth 2 Polysorbate 20
AKA “Polysorbate 20, Tween 20
Ingredient
Ingredient Facts
Oleth 2 polysorbate 20
AKA: Tween 20
Ingredient · Emulsifying · EWG: 2
Synthetic
Cleanser
Emulsifier
Clean
Restricted:EWG VERIFIED products cannot contain this ingredient without adequate substantiation.
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.
Surfactant
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Antioxidant
Provides scent
Traditional Use
A modern synthetic emulsifier developed in the 20th century to improve stability and texture in cosmetic formulations by blending ethoxylated ingredients.
Skin Types
all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
2
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-2
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR