Sodium Stearyl Fumarate

AKA: 4070-80-8, Sodium monostearyl fumarate, SODIUM OCTADECYL FUMARATE, Sodium 2-octadecylfumarate
Plant-Derived
Clean
OriginDerived from stearic acid and fumaric acid, typically sourced from vegetable oils or petroleum. Synthesized through esterification reaction between stearyl alcohol and fumaric acid.
Sodium octadecyl fumarate
Formula
C22H39NaO4
Mol. Weight
390.50
CAS #
4070-80-8
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Bulking
Anti-Inflammatory
Antimicrobial
Fights Acne
Adds volume
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
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