Bis-Cetyl/PEG-8 Cetyl PEG-8 Dimethicone
AKA: Cetyl Dimethicone, Silicone Emollient
Synthetic
Emulsifier
Silicone
Not Clean
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
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
Traditional Use
A synthetic silicone-based emulsifier developed in the mid-to-late 20th century. Created to improve the blending of oil and water phases while providing silky texture in cosmetics.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: CosIng · EWG · CIR