Poloxamer 403
AKA “Pluronic 403, Poloxamer 403, Polyoxypropylene Polyoxyethylene Block Copolymer
Synthetic
Ingredient Facts
Poloxamer 403
AKA: Pluronic 403, Polyoxypropylene Polyoxyethylene Block Copolymer
Synthetic · Cleansing · EWG: 4
Synthetic
Cleanser
Emulsifier
Synthetic
Clean
A gentle cleanser that helps remove oil and dirt while keeping formulas smooth and blended together.
CAS #
9003-11-6
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.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Surfactant Cleansing
Surfactant Emulsifying
Anti-Inflammatory
Antimicrobial
Strengthens Barrier
Lifts away dirt and oil
Mixes oil and water
Traditional Use
A synthetic block copolymer surfactant created in the mid-20th century for the cosmetics industry. Serves as an emulsifier and conditioning agent in modern skincare with no historical precedent.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not an Irritant
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR