Isohexyl Caprate
AKA “isohexyl decanoate, GU26IV4FXB, Decanoic acid, 4-methylpentyl ester, Isohexyl caprate [INCI], UNII-GU26IV4FXB, DTXSID90623646, RefChem:149416, DTXCID70574400, 4-METHYLPENTYL DECANOATE”
Emollient
Ingredient Facts
Isohexyl caprate
AKA: Isohexyl decanoate, GU26IV4FXB, Decanoic acid, 4-methylpentyl ester, Isohexyl caprate [INCI], UNII-GU26IV4FXB, DTXSID90623646, RefChem:149416, DTXCID70574400, 4-METHYLPENTYL DECANOATE
Emollient · Emollient · EWG: 1
Synthetic
Emollient
Skin Conditioner
Clean
Decanoic acid, 4-methylpentyl ester
Formula
C16H32O2
Mol. Weight
256.42
CAS #
138208-67-0
Form
Liquid
See origin →
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.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
10-Hydroxydecanoic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Isohexyl Caprate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Undecanoic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
10-Hydroxydecanoic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Isohexyl Caprate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Combating Lead/HFD Neurotoxicity in Rats: The Synergistic Effect of 10-Hydroxydecanoic Acid and Zinc Oxide Nanoparticles.
Saleh SR, Atef E, Maher AM, Ghareeb DA, Sheta E et al.
Biological trace element research, 2026
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR