Isostearyl Palmitate
molecular structure · PubChem
AKA: Isooctadecyl palmitate, 72576-80-8, Hexadecanoic acid, Isooctadecyl ester, Isooctadecyl hexadecanoate, PELEMOL I-1816, PROTACHEM ISP, JEECHEM ISP
Plant-Derived
Emollient
Skin Conditioner
Plant Oil
Clean
The CIR Expert Panel concluded that the alkyl esters, listed subsequently, are safe in the present practices of use and concentration described in this safety assessment when formulated to be non-irritating.
Formula
C34H68O2
Mol. Weight
508.90
CAS #
72576-80-8
Form
Liquid
Functions
Binding
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
Traditional Use
A synthetic ester combining isostearyl alcohol with palmitic acid, developed as a cosmetic emollient. Used to provide skin conditioning and stability in modern skincare and cosmetic products.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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