Stearamidopropyl Dimethicone

Stearamidopropyl Dimethicone molecular structure
molecular structure · PubChem
AKA: Stearamide Silicone, Silicone Emollient
Plant-Derived
Occlusive
Silicone
Not Clean
OriginDerived from silicone compounds and fatty acid derivatives, typically sourced from petroleum-based starting materials. Synthesized through chemical coupling of dimethicone with stearamidopropyl groups via condensation reactions.
Siloxanes and silicones, dimethyl, methyl 3-[(1-oxooctadecyl)amino]propyl
CAS #
227200-31-9
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Anticorrosive
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Prevents Corrosion
Creates Protective Barrier
Creates protective layer
Prevents product degradation
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