Bis-Hydroxyethoxypropyl Dimethicone
AKA: Silicone Modifier, Modified Dimethicone
Synthetic
Emollient
Skin Conditioner
Silicone
Clean
Silicones and siloxanes, dimethyl, 3-(2-hydroxyethoxy)propyldimethylsilyl terminated
CAS #
-
Form
Liquid
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
Developed in the late 20th century as a silicone copolymer designed to improve water resistance and adhesion properties in cosmetic formulations, particularly in long-wear makeup and skincare products.
EWG
2
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
Not a Sensitizer
ewg-2
medical-approval
pregnancy-nursing-safe
all-shades-safe
Regulatory Agencies
Skin Types
●all-skin-types, gentle
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR