PEG-8 Distearate
molecular structure · PubChem
AKA: 9005-08-7, Ethane-1, 2-diol;heptadecanoic acid, Ethylene glycol;heptadecanoic acid, QYJQHDWGURXGNL-UHFFFAOYSA-N, C19H40O4, Protamate 200-DS(TM), PEG-4 Distearate(TM)
Plant-Derived
Cleanser
Emulsifier
Clean
OriginDerived from stearic acid, a fatty acid typically sourced from animal fats or vegetable oils like palm. Synthesized through esterification of stearic acid with polyethylene glycol under controlled heat and catalytic conditions.
Poly(oxy-1,2-ethanediyl), .alpha.-(1-oxooctadecyl)-.omega.-[(1-oxooctadecyl)oxy]- (8 mol EO average molar ratio)
Formula
C19H40O4
Mol. Weight
332.50
CAS #
9005-08-7
Form
Liquid
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
Reduces Inflammation
Locks In Moisture
Fights Bacteria
Mixes Oil & 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.
EWG
2
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on0.0091–6.5%
Rinse-off7%
0%50%100%
CIR reported use · 2014 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
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