PEG-8 PEG-4 Dimethicone
AKA “Polyethylene Glycol 8 Polyethylene Glycol 4 Dimethicone”
Synthetic
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Ingredient Facts
Peg-8 peg-4 dimethicone
AKA: Polyethylene Glycol 8 Polyethylene Glycol 4 Dimethicone
Synthetic · Hair Conditioning | Surfactant - Cleansing | Surfactant - Emulsifying · EWG: 4
Plant-Derived
Cleanser
Emulsifier
Skin Conditioner
Hair Care
Silicone
Synthetic
Not Clean
PEG-8 PEG-4 Dimethicone is the reaction product of Hydrogen Dimethicone and allyl PEG-8 and allyl PEG-4. Science: Process: Ethoxylation | Functions: Hair Conditioning, Surfactant - Cleansing, Surfactant - Emulsifying Safety Ratings: CIR: Safe as used
Form
Liquid
Plant-Derived
Synthetic. Derived from dimethicone (silicone polymer) reacted with polyethylene glycol (PEG) compounds and allyl groups. Synthesized through ethoxylation and coupling reactions to create a hybrid silicone-PEG surfactant molecule.
Function
Hair Conditioning | Surfactant - Cleansing | Surfactant - Emulsifying
Benefits
Conditions Hair
Cleansing Surfactant
Emulsifier
Reduces Inflammation
Locks In Moisture
Fights Bacteria
Lifts away dirt and oil
Softens and detangles hair
Mixes oil and water
Traditional Use
A modern synthetic emulsifier combining polyethylene glycol with silicone polymers, developed in the late 20th century for use in premium skincare and cosmetic formulations.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score4
CIR Safety Findings
medical-approval, all-shades-safe, Not a Sensitizer
Regulatory Agencies
Verified Feb 2026
Data: CosIng · EWG · CIR