C20-24 Alkyl Dimethicone

C20-24 Alkyl Dimethicone molecular structure
molecular structure · PubChem
AKA: Silicone, Alkyl Silicone
Synthetic
Skin Conditioner
Silicone
Clean
OriginDerived from silicone polymers, specifically long-chain alkyl-modified dimethicone compounds synthesized from silica. Produced through hydrosilylation reactions that attach long-chain alkyl groups to dimethicone backbone polymers.
Siloxanes and Silicones, C20-24 alkyl methyl, dimethyl
CAS #
200074-76-6
Form
Liquid
Skin Types
●all-skin-types, gentle
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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.
Viscosity Controlling
Locks in moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
2
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on8%
Rinse-offNot reported
0%50%100%
CIR reported use · 2020 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR