Methylhelptyl isostearate

AKA: Methylheptyl Isostearate
Plant-Derived
Emollient
Skin Conditioner
Not Clean
OriginTypically derived from plant-based oils such as coconut, palm kernel, or vegetable sources through synthetic modification. Produced through esterification of isostearic acid with methylheptyl alcohol to create the ester compound.
Methylhelptyl isostearate is a cosmetic ingredient.
Family
N/A – While derived from plant-based oils, it's synthetically manufactured
CAS #
209802-43-7
Skin Types
●all-skin-types
Best For
Dryness
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Conditions Skin
EWG
4
CIR
—
Pregnancy
—
Regulatory Status
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG