PEG/PPG-15/5 Dimethicone
AKA “Silicone Glycol Copolymer, Dimethicone Copolyol
Surfactant
Ingredient Facts
Peg/ppg-15/5 dimethicone
AKA: Silicone Glycol Copolymer, Dimethicone Copolyol
Surfactant · Emulsifying · EWG: 4
Synthetic
Cleanser
Emulsifier
Silicone
Not Clean
PEG/PPG-15/5 Dimethicone is the alkoxylated derivative of Dimethicone containing an average of 15 moles of ethylene oxide and 5 moles of propylene oxide
CAS #
-
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 modern synthetic silicone-based ingredient developed for the cosmetics industry in the late 20th century. Created to enhance texture, conditioning, and sensory properties in skincare products.
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Status
USApermitted
CANADApermitted
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR