PEG/PPG-15/15 Dimethicone
AKA “Silicone Glycol Copolymer, Dimethicone Copolyol
Synthetic
Ingredient Facts
Peg/ppg-15/15 dimethicone
AKA: Silicone Glycol Copolymer, Dimethicone Copolyol
Synthetic · Anticaking · EWG: 4
Synthetic
Cleanser
Emulsifier
Silicone
Synthetic
Clean
Siloxanes and silicones, dimethyl, 3-hydroxypropyl methyl, ethoxylated, propoxylated (15 mol EO, 5 mol PO average molar ratio) Science: Functions: Anticaking, Surfactant - Emulsifying Safety Ratings: CIR: Safe as used
Form
Liquid
See origin →
Functions
Anticaking
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Prevents Clumping
Emulsifier
Mixes oil and water
Traditional Use
A sophisticated synthetic silicone copolymer developed in the late 20th century for premium cosmetics. Designed to provide superior emulsification, conditioning, and skin-feel properties in advanced formulations.
Skin Types
all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
CANADApermitted
Regulatory Agencies
Verified Feb 2026
Data: CosIng · EWG · CIR