PEG/PPG-27/27 Dimethicone
molecular structure · PubChem
AKA: Silicone Surfactant, Silicone Emulsifier
Synthetic
Cleanser
Emulsifier
Silicone
Clean
OriginSynthesized from dimethicone, a silicone polymer, combined with polyethylene glycol and polypropylene glycol chains. Created through addition reactions bonding polyether chains to the dimethicone backbone via catalytic processes.
Siloxanes and silicones, dimethyl, 3-hydroxypropyl methyl, ethoxylated, propoxylated (27 mol EO, 27 mol PO average molar ratio)
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
Restricted By
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2014
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR
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