Dimethiconol Hydroxystearate
AKA “Silicone-Hydroxystearate Complex, Dimethiconol Hydroxystearate
Emollient
Ingredient Facts
Dimethiconol hydroxystearate
AKA: Silicone-Hydroxystearate Complex
Emollient · Emollient · EWG: 4
Plant-Derived
Emollient
Skin Conditioner
Silicone
Not Clean
Siloxanes and Silicones, Dimethyl, [(12-Hydroxy-1-Oxooctadecyl)Oxy]- Terminated
CAS #
133448-13-2
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 hydroxystearic acid (derived from plant oils). Created to improve emulsification and conditioning in modern cosmetic formulations.
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR