Dimethiconol Isostearate
AKA “Silicone-Isostearate Complex, Dimethiconol Isostearate”
Emollient
Ingredient Facts
Dimethiconol isostearate
AKA: Silicone-Isostearate Complex
Emollient · Emollient · EWG: 4
Plant-Derived
Emollient
Skin Conditioner
Silicone
Not Clean
Silicones and siloxanes, dimethyl, 12-hydroxy-1-oxoisooctadexcyloxy-terminated
CAS #
133448-14-3
Form
Liquid
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
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
A synthetic compound developed in the 20th century combining silicone with isostearic acid, a branched fatty acid. Created to improve conditioning, emolliency, and spreadability in contemporary skincare and haircare.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Verified Jun 2026
Data: CosIng · EWG · CIR