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C30-45 Alkyl Dimethicone/Polycyclohexene Oxide Crosspolymer
AKA “Silicone Crosspolymer, Dimethicone Crosspolymer”
Emollient
Ingredient Facts
C30-45 alkyl dimethicone/polycyclohexene oxide crosspolymer
AKA: Silicone Crosspolymer, Dimethicone Crosspolymer
Emollient · Emollient · EWG: 2
Synthetic
Emollient
Occlusive
Skin Conditioner
Silicone
Clean
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
See origin →
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
Traditional Use
A hybrid silicone-organic crosspolymer developed in the late 20th century. Designed to create innovative gel textures and improve sensory properties in advanced skincare formulations.
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-2
medical-approval
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Safety Assessment of Dimethicone Crosspolymers as Used in Cosmetics.
Becker LC, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2014
→
Safety Assessment of Dimethicone Crosspolymers as Used in Cosmetics.
Becker LC, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2014
→
Safety Assessment of Dimethicone Crosspolymers as Used in Cosmetics.
Becker LC, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2014
→
Safety Assessment of Dimethicone Crosspolymers as Used in Cosmetics.
Becker LC, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2014
→
Safety Assessment of Dimethicone Crosspolymers as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Acrylates/Bis-Hydroxypropyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Behenyl Dimethicone/Bis-Vinyldimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Bis-Phenylisopropyl Phenylisopropyl Dimethicone/Vinyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Bis-Vinyldimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Bis-Vinyldimethicone/PEG-10 Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
C30-45 Alkyl Cetearyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
C30-45 Alkyl Dimethicone/Polycyclohexene Oxide Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
C4-24 Alkyl Dimethicone/Divinyldimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Cetearyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Cetearyl Dimethicone/Vinyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Cetyl Dimethicone/Bis-Vinyldimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Cetyl Hexacosyl Dimethicone/Bis-Vinyldimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Crotonic Acid/Vinyl C8-12 Isoalkyl Esters/VA/Bis-Vinyldimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Dimethicone Crosspolymer-3
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Dimethicone/Lauryl Dimethicone/Bis-Vinyldimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Dimethicone/Phenyl Vinyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Dimethicone/Vinyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Diphenyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Divinyldimethicone/Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Isopropyl Titanium Triisostearate/Triethoxysilylethyl Polydimethylsiloxyethyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Lauryl Polydimethylsiloxyethyl Dimethicone/Bis-Vinyldimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG-10 Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG-10 Dimethicone/Vinyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG-10 Polydimethylsiloxyethyl Dimethicone/Bis-Vinyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG-10/Lauryl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG-12 Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG-15/Lauryl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG-15/Lauryl Polydimethylsiloxyethyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Perfluorononyl Dimethicone/Methicone/Amodimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Polydimethylsiloxyethyl Dimethicone/Bis-Vinyldimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Polyglyceryl-3/Lauryl Polydimethylsiloxyethyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Trifluoropropyl Dimethicone/Trifluoropropyl Divinyldimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Trimethylsiloxysilicate/Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Vinyl Dimethicone/Lauryl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Vinyl Dimethicone/Lauryl/Behenyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Vinyldimethyl/Trimethylsiloxysilicate Stearyl Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Vinyldimethyl/Trimethylsiloxysilicate/Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Bis-Vinyldimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
C30-45 Alkyl Cetearyl Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
C30-45 Alkyl Dimethicone/Polycyclohexene Oxide Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
C4-24 Alkyl Dimethicone/Divinyldimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Cetearyl Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Cetearyl Dimethicone/Vinyl Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Cetyl Dimethicone/Bis-Vinyldimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Crotonic Acid/Vinyl C8-12 Isoalkyl Esters/VA/Bis-Vinyldimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Dimethicone Crosspolymer-3
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Dimethicone/ Vinyl Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Dimethicone/Phenyl Vinyl Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Dimethicone/Vinyl Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Diphenyl Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Divinyldimethicone/Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
PEG-10 Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
PEG-10 Dimethicone/Vinyl Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
PEG-10/Lauryl Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
PEG-12 Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
PEG-15/Lauryl Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Trimethylsiloxysilicate/Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Vinyl Dimethicone/Lauryl Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Verified Jun 2026
Data: CosIng · EWG · CIR