PEG/PPG-27/27 Dimethicone
AKA “Silicone Surfactant, Silicone Emulsifier”
Surfactant
Ingredient Facts
Peg/ppg-27/27 dimethicone
AKA: Silicone Surfactant, Silicone Emulsifier
Surfactant · Emulsifying · EWG: 2
Synthetic
Cleanser
Emulsifier
Silicone
Clean
Siloxanes and silicones, dimethyl, 3-hydroxypropyl methyl, ethoxylated, propoxylated (27 mol EO, 27 mol PO average molar ratio)
Form
Liquid
See origin →
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
Traditional Use
A silicone copolymer developed for cosmetic applications. Created to improve emulsification, spreadability, and sensory properties of modern skincare and beauty products.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
2
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
PEG/PPG-27/27 Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
PEG/PPG-27/27 Dimethicone
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Effects of silicone emulsifiers on in vitro skin permeation of sunscreens from cosmetic emulsions.
Montenegro L, Paolino D, Puglisi G
Journal of cosmetic science, 2004
Verified Jun 2026
Data: CosIng · EWG · CIR