murphyPEG-8 Propylheptyl Ether
molecular structure · PubChem
AKA: Polyethylene Glycol 8 Propylheptyl Ether
Synthetic
Emulsifier
Clean
OriginDerived from propylheptyl alcohol and ethylene oxide, belonging to the polyethylene glycol ether chemical family. Produced through ethoxylation, where ethylene oxide is catalytically added to propylheptyl alcohol.
PEG-8 Propylheptyl Ether is a cosmetic ingredient used as emulsion stabilising. Rated low hazard by EWG. Assessed as safe by the CIR.
CAS #
-
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Stabilizes Emulsion
Reduces Inflammation
Locks In Moisture
Fights Bacteria
Keeps product blended
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on0.005–0.05%
Rinse-offNot reported
0%50%100%
CIR reported use · report published 2012
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR