Isohexyl Caprate

AKA: Isohexyl decanoate, Decanoic acid, 4-methylpentyl ester, Isohexyl caprate [INCI], 4-METHYLPENTYL DECANOATE

Synthetic

Emollient

Skin Conditioner

Clean

Decanoic acid, 4-methylpentyl ester

Formula

C16H32O2

Mol. Weight

256.42

CAS #

138208-67-0

Form

Liquid

Functions

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

Synthetic ester combining isohexyl alcohol with capric acid (naturally found in coconut oil). Developed as a modern cosmetic emollient designed to mimic properties of natural oils in a stable, standardized form.

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not a Sensitizer

medical-approval

all-shades-safe

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Skin Types

●all-skin-types

Best For

Dryness

Pregnancy & Breastfeeding Safe

Yes

The paper trail

🔬Peer-reviewednone on file

⚖️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