Methylhelptyl isostearate

AKA: Methylheptyl Isostearate

Plant-Derived

Emollient

Skin Conditioner

Plant Oil

Not Clean

Methylhelptyl isostearate is a cosmetic ingredient.

Family

N/A – While derived from plant-based oils, it's synthetically manufactured

CAS #

209802-43-7

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

CIR

—

Pregnancy

—

CIR Safety Findings

all-shades-safe

Regulatory Status

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

Skin Types

●all-skin-types

Best For

Dryness

Verified Jun 2026

Data: CosIng · EWG