Aminopropyl Dimethicone
AKA: Amino Silicone, Conditioning Silicone
Synthetic
Skin Conditioner
Hair Care
Silicone
Clean
Silicones and siloxanes, dimethyl, 3-aminopropyl methyl, trimethylsilyl terminated
CAS #
99363-37-8
Form
Liquid
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.
Conditions Hair
Softens and detangles hair
Traditional Use
Created in the late 20th century by combining silicone (dimethicone) with an amino group to improve hair and skin conditioning. Developed to provide better conditioning properties than standard silicones with enhanced film-forming abilities.
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
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed4 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR