Science
Mechanism of Action
This ingredient primarily functions by significantly reducing the interfacial tension between immiscible oil and water phases, allowing them to form stable, uniform emulsions. Its humectant properties stem from its PEG structure, enabling it to attract and bind water, thereby contributing to increased skin moisture and a reduction in transepidermal water loss. Furthermore, it acts as a skin conditioning agent, a solubilizer for other compounds, and a viscosity control agent, influencing the texture and flow of formulations.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
PEG-11 Oleate is generally stable under typical formulation conditions. However, at elevated temperatures (120°C or higher), it can interact with atmospheric oxygen, leading to potential degradation. The inclusion of antioxidants can effectively improve its chemical stability.
Conflicts
- Avoid use on damaged or compromised skin, as per general cosmetic ingredient guidelines.
- Manufacturers must ensure stringent purification processes to eliminate trace impurities and by-products, specifically ethylene oxide and 1,4-dioxane.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded that PEGylated oils, including PEG-11 Oleate, are safe for use in cosmetic formulations under current use practices and concentrations, provided the final products are formulated to be non-irritating. The U.S. FDA lists 'PEG Oleate' (CAS Reg. No. 9004-96-0, which is associated with PEG-11 Oleate) as a secondary direct food additive and surface-active agent. No specific SCCS opinion regarding PEG-11 Oleate has been documented.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-11 Oleate is a valuable, multifunctional ingredient that enhances formulation stability through effective emulsification while simultaneously contributing to skin hydration and conditioning.
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References
Sources