C30-45 Alkyl Dimethicone/Polycyclohexene Oxide Crosspolymer

C30-45 Alkyl Dimethicone/Polycyclohexene Oxide Crosspolymer molecular structure
molecular structure · PubChem
AKA: Silicone Crosspolymer, Dimethicone Crosspolymer
Synthetic
Emollient
Occlusive
Skin Conditioner
Silicone
Clean
OriginDerived from dimethicone (a silicone polymer) and polycyclohexene oxide as the primary chemical components. Synthesized through crosslinking reactions between the silicone and cyclohexene oxide monomers under catalytic conditions.
C30-45 Alkyl Dimethicone/Polycyclohexene Oxide Crosspolymer is C30-45 Alkyl Dimethicone cross-linked with a polyether made from vinyl cyclohexene oxide
CAS #
330809-27-3, 389082-70-6
Form
Powder
State
Solid
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
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.
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
CIR's newest survey reports no concentration of use.
CIR · 2012 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR