C30-45 Alkyl Methicone

C30-45 Alkyl Methicone molecular structure
molecular structure · PubChem
AKA: Silicone
Synthetic
Emollient
Skin Conditioner
Clean
OriginBelongs to the silicone chemical family, synthesized from silicon-based polymers with alkyl chain modifications. Produced through hydrosilylation reactions that attach long-chain alkyl groups to polydimethylsiloxane backbone polymers.
Siloxanes and silicones, C30-45-alkyl methyl
CAS #
246864-88-0
Form
Liquid
Skin Types
●all-skin-types, gentle
Best For
General
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.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Viscosity Controlling
Locks In Moisture
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.
EWG
2
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on0.0054–2.2%
Rinse-offNot reported
0%50%100%
CIR reported use · 2019 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR