PEG/PPG-20/20 Dimethicone

AKA: Silicone Glycol Copolymer, Dimethicone Copolyol
Synthetic
Cleanser
Emulsifier
Silicone
Clean
OriginSynthesized from dimethicone, a silicone polymer, combined with polyethylene glycol and polypropylene glycol chains. Created through etherification and esterification reactions that attach hydrophilic polyether groups to the silicone backbone.
Siloxanes and silicones, dimethyl, 3-hydroxypropyl methyl, ethoxylated, propoxylated (20 mol EO, 20 mol PO average molar ratio)
CAS #
-
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsifier
Mixes Oil & Water
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 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
Leave-on0.11–0.33%
Rinse-offNot reported
0%50%100%
CIR reported use · report published 2014
Regulatory Status
USA✔ permitted
CANADA✔ permitted
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR