Hydroxypropyldimethicone
AKA “HPDMS, Dimethicone hydroxypropyl”
Skin Conditioning
Tap what applies — every card instantly flags it for you. Stays on your device, syncs if you're signed in.
Ingredient Facts
Hydroxypropyldimethicone
AKA: HPDMS, Dimethicone hydroxypropyl
Skin Conditioning · Hair Conditioning · EWG: 4
Synthetic
Skin Conditioner
Hair Care
Silicone
Not Clean
Siloxanes and silicones, Dimethyl, 3-Hydroxypropyl Methyl
CAS #
102782-61-6
Form
Liquid
See origin →
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
Developed in the late 20th century as a modified silicone polymer combining hydroxypropyl and dimethicone technologies. Created to provide improved water solubility and conditioning properties compared to unmodified silicones.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR