murphyPEG-20M
molecular structure · PubChem
AKA: Polyethylene Glycol 20000000, PEG 20 Million
Synthetic
Emulsifier
Not Clean
OriginPEG-20M belongs to the polyethylene glycol (PEG) chemical family, synthesized from ethylene oxide. Produced through polymerization of ethylene oxide monomers, then polymerized to achieve the high molecular weight of approximately 20,000 g/mol.
Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy- (20,000 mol EO average molar ratio)
CAS #
25322-68-3
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Binding
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Viscosity Controlling
Holds Formula Together
Stabilizes Emulsion
Controls Viscosity
Holds ingredients together
Keeps product blended
Controls product thickness
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer (CIR Panel on the ingredient group)
CIR Panel statement covering this group of ingredients / not tested individually (CIR 88)
Skin Irritant in Testing
1 study / 1 irritating / reactions mild (CIR 88)
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR