Isostearyl Behenate

AKA: Pelemol ISB, Isostearyl behenate [INCI], Docosanoic acid, Isooctadecyl ester, 125804-16-2
Plant-Derived
Emollient
Skin Conditioner
Clean
OriginDerived from long-chain fatty acids, typically sourced from vegetable oils like coconut or palm kernel oil. Synthesized through esterification of isostearyl alcohol with behenic acid.
Docosanoic acid, isooctadecyl ester
Formula
C40H80O2
Mol. Weight
593.10
CAS #
125804-16-2
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
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.
EWG
1
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on4%
Rinse-offNot reported
0%50%100%
CIR reported use · 2012 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR