Decyl Isostearate
AKA “Decyl isooctadecanoate, NIKKOL GS-DIS, EINECS 283-388-6, RefChem:585579, DECYL ISOSTEARATE [INCI], Decyl 16-methylheptadecanoate”
Synthetic
Ingredient Facts
Decyl isostearate
AKA: Decyl isooctadecanoate, NIKKOL GS-DIS, EINECS 283-388-6, RefChem:585579, DECYL ISOSTEARATE [INCI], Decyl 16-methylheptadecanoate
Synthetic · Emollient · EWG: 5
Synthetic
Emollient
Skin Conditioner
Synthetic
Clean
Decyl Isostearate is a lightweight conditioning agent that softens and smooths skin and hair while helping products feel silky and comfortable to wear.
Formula
C28H56O2
Mol. Weight
424.70
CAS #
84605-08-3
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.
Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Softens & Smooths
Smooths and softens skin
Traditional Use
A modern synthetic ester developed in the 20th century as an emollient and skin-conditioning agent. Designed to replicate the sensory benefits of natural oils while providing improved stability and spreadability in cosmetic formulations.
Skin Types
●all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Hexyldecyl Isostearate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Octyldodecyl Isostearate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Decyl Isostearate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Hexyldecyl Isostearate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Octyldodecyl Isostearate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR