Bis-Cetyl/PEG-8 Cetyl PEG-8 Dimethicone

Bis-Cetyl/PEG-8 Cetyl PEG-8 Dimethicone molecular structure
molecular structure · PubChem
AKA: Cetyl Dimethicone, Silicone Emollient
Synthetic
Emulsifier
Silicone
Not Clean
OriginDerived from cetyl alcohol and dimethicone, both petroleum-derived or synthetically produced organic compounds. Synthesized through ethoxylation and esterification reactions combining these base materials into a silicone-based emulsifier.
Bis-Cetyl/PEG-8 Cetyl PEG-8 Dimethicone is a cosmetic ingredient used as emulsion stabilising. Assessed as safe by the CIR.
CAS #
-
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Stabilizes Emulsion
Keeps product blended
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
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 664)
Skin Irritant in Testing
1 study / 1 irritating (CIR 664)
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2014
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR