murphyPEG-4 Oleamide
molecular structure · PubChem
AKA: PEG-3 oleamide, 26027-37-2, PEG-3 OLEAMIDE [INCI], POE OLEIC AMIDE, (Z)-N-[2-[2-(2-hydroxyethoxy)ethoxy]ethyl]octadec-9-enamide
Synthetic
Cleanser
Emulsifier
Not Clean
OriginDerived from oleic acid (an unsaturated fatty acid) and polyethylene glycol, both petroleum-derived or plant-derived sources. Synthesized through ethoxylation of oleamide, creating a polyethylene glycol ester compound.
Poly(oxy-1,2-ethanediyl), .alpha.-[2-[(1-oxo-9-octadecenyl)amino]ethyl]-.omega.-hydroxy- (4 mol EO average molar ratio)
Formula
C24H47NO4
Mol. Weight
413.60
CAS #
26027-37-2
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsifier
Locks In Moisture
Wound Healing
Antioxidant Protection
Mixes Oil & Water
The paper trail
🔬Peer-reviewednone on file
⚖️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
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2019
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR