PEG-9 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
Poly(oxy-1,2-ethanediyl), .alpha.-[2-[(1-oxo-9-octadecenyl)amino]ethyl]-.omega.-hydroxy- (9 mol EO average molar ratio)
Formula
C24H47NO4
Mol. Weight
413.60
CAS #
26027-37-2
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsifier
Mixes Oil & Water
Traditional Use
A synthetic emulsifier developed in the late 20th century combining polyethylene glycol with oleic acid (from olive oil and other plant sources traditionally used in skincare). Designed to provide gentle emulsification while mimicking properties of natural oils.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
Dermal absorption: 100%. Source: CIR Safety Assessment (CIR Seq 772).
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR