Isostearyl Benzoate
molecular structure · PubChem
AKA: Benzoic acid, Isooctadecyl ester, Isooctadecanol, FINSOLV SB, ISOOCTADECYL BENZOATE
Plant-Derived
Emollient
Skin Conditioner
Hair Care
Not Clean
Benzoic acid, isooctadecyl ester
Formula
C25H42O2
Mol. Weight
374.60
CAS #
34364-24-4
Form
Liquid
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
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 developed for cosmetic use as a lightweight emollient and preservative enhancer. Designed to improve the feel and stability of skincare and color cosmetic products.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR