PEG/PPG-18/12 Dimethicone
AKA: Silicone Glycol Copolymer, Dimethicone Copolyol
Synthetic
Emollient
Skin Conditioner
Silicone
Not Clean
PEG/PPG-18/12 Dimethicone is the alkoxylated derivative of Dimethicone containing an average of 18 moles of ethylene oxide and 12 moles of propylene oxide
CAS #
-
Form
Liquid
Functions
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 sophisticated synthetic silicone-based copolymer developed in the late 20th century for premium cosmetics. Engineered as a multifunctional emulsifier and conditioning agent for advanced skincare formulations.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Restricted By
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