Science
Mechanism of Action
As a cationic surfactant, PEG-15 Cocomonium Methosulfate functions by adsorbing onto negatively charged substrates such as hair and skin, thereby neutralizing static charges to provide an antistatic effect. Its surfactant properties facilitate cleansing by lowering surface tension, while its role as an emulsifier enables the formation and stabilization of oil-in-water or water-in-oil emulsions. Furthermore, it can impart hydrophobic characteristics to treated surfaces, enhancing their water resistance.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
In aqueous solutions at an approximate concentration of 5%, PEG-15 Cocomonium Methosulfate exhibits a neutral pH, typically ranging from 6 to 8. The ingredient demonstrates high stability across extreme pH conditions, maintaining integrity in alkaline environments up to 140 grams of NaOH per liter and in acidic environments containing up to 225 ml of sulfuric acid per liter.
Conflicts
- Anionic surfactants (unless specifically formulated for compatibility)
- Strong oxidizing agents (for storage)
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that related PEG Cocamine ingredients, including PEG-15 Cocomonium Methosulfate, are safe for use in cosmetics when formulated to be non-irritating. A key safety consideration involves the potential for contamination by toxic impurities such as ethylene oxide and 1,4-dioxane, necessitating stringent purification in manufacturing processes.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-15 Cocomonium Methosulfate is a valuable ingredient for formulations requiring antistatic, conditioning, and emulsifying properties, provided it is precisely formulated to be non-irritating and free from contaminants.
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References
Sources