Science
Mechanism of Action
This ingredient reduces the surface tension between oil and water phases, thereby enabling the formation of stable emulsions. Its unique molecular structure, possessing both lipophilic and hydrophilic regions, allows it to effectively act as a surfactant. PEG-2 Cocamine can also help regulate pH and, particularly in acidic systems, may exhibit combined non-ionic and cationic surfactant properties. As a derivative of polyethylene glycols, it has the capacity to retain moisture by forming hydrogen bonds with water molecules, which can potentially support the skin's natural barrier function.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
PEG-2 Cocamine exhibits excellent stability across a broad pH spectrum, performing effectively in both acidic and alkaline formulations. It is resistant to hard water and is considered particularly suitable for alkaline emulsion systems, such as those found in hair dye creams or gels.
Safety
Safety Profile
The CIR Expert Panel concluded in both 1999 and 2015 that insufficient data existed to thoroughly assess the safety of PEG-2 Cocamine specifically. While a broader review cleared many related PEG cocamines (32 out of 47) as safe when formulated to be non-irritating, PEG-2 Cocamine, along with 14 other specific PEG-2, -3, -4, or -5 ingredients, still lacked adequate safety data. Concerns persist regarding potential 1,4-dioxane and ethylene oxide impurities, which require stringent control by manufacturers through purification. PEG-2 Cocamine is approved for general or specific limited use in food by the US FDA, and the FDA monitors for unsafe levels of 1,4-dioxane in cosmetics. It is permitted in cosmetics marketed in Europe under general provisions of the EU Cosmetics Regulation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Despite its functional utility as an emulsifier and surfactant, the specific safety profile of PEG-2 Cocamine remains insufficiently established by authoritative bodies, leading to an 'avoid' recommendation for precision skincare formulations.
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