Science
Mechanism of Action
Functioning as both a surfactant and an emulsifier, PEG-2 Stearamine enables immiscible liquids like oil and water to mix, facilitating cleansing and creating stable emulsion systems. Its surfactant properties allow it to lower surface tension, helping water combine with oily residues on the skin and hair, which can then be easily rinsed away. As an emulsifier, it contributes to the formation and stability of oil-in-water (O/W) or water-in-oil (W/O) emulsions, often collaborating with other emulsifiers. Additionally, it provides anti-static benefits, boosts foam, and acts as a mild detergent.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 The Cosmetic Ingredient Review (CIR) Expert Panel has evaluated related PEG Stearates, including PEG-2 Stearate, concluding they are neither irritants nor sensitizers at concentrations of 25% or greater. This supports its functional use in cosmetic formulations.
Transparency
Dusting Analysis
The Formula
Formulation
Synergies
- Often used in combination with other emulsifiers to enhance emulsion stability.
Safety
Safety Profile
The CIR Expert Panel found PEG-2 Stearate to be safe in current cosmetic concentrations, provided it is formulated to be non-irritating. Studies indicated minimal skin and eye irritation at 100% concentration, with no irritation or sensitization observed at 25% or above. However, the Environmental Working Group (EWG) raises potential concerns regarding contamination with ethylene oxide and 1,4-dioxane, by-products of the ethoxylation process.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-2 Stearamine is a valuable functional ingredient for formulating stable and effective cleansing and moisturizing products, with a robust safety profile from CIR, although potential contamination concerns should be managed by formulators.
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References
Sources