C26-28 Alkyl Methicone

C26-28 Alkyl Methicone molecular structure
molecular structure · PubChem
AKA: Silicone
Synthetic
Skin Conditioner
Not Clean
OriginDerived from siloxane chemistry, specifically long-chain alkyl-modified methicone compounds from petroleum-based starting materials. Synthesized through hydrosilylation reactions coupling alkenes with methylsiloxane polymers under catalyst conditions.
Siloxanes and Silicones, C26-28 alkyl methyl, trimethylsilyl terminated
Form
Liquid
Skin Types
●all-skin-types
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.
Locks in moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
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