murphyPoloxamer 331
molecular structure · PubChem
AKA: Pluronic 331, Polyoxypropylene Polyoxyethylene Block Copolymer
Synthetic
Cleanser
Emulsifier
Clean
OriginSynthesized from ethylene oxide and propylene oxide polymers combined with polypropylene glycol. Produced through sequential polymerization and condensation reactions of these chemical building blocks.
Oxirane, methyl-, polymer with oxirane (7;54)
CAS #
9003-11-6
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR