Hydroxypropyldimethicone

Hydroxypropyldimethicone molecular structure
molecular structure · PubChem
AKA: Dimethicone hydroxypropyl
Synthetic
Skin Conditioner
Hair Care
Not Clean
OriginDerived from silicone polymers, specifically dimethicone compounds modified with hydroxypropyl groups. Synthesized through hydrosilylation reactions that add hydroxypropyl side chains to dimethicone backbone polymers.
Siloxanes and silicones, Dimethyl, 3-Hydroxypropyl Methyl
CAS #
102782-61-6
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2022
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR