Science
Mechanism of Action
Functioning primarily as a surfactant, PEG-75 Oleate acts as both an emulsifier and solubilizer, enabling the harmonious blending and long-term stability of immiscible water and oil-based components within a formulation. The polyethylene glycol (PEG) moiety imparts humectant properties, attracting and retaining water to boost skin hydration. Furthermore, its oleate component, derived from oleic acid, has demonstrated utility as a skin penetration enhancer, potentially improving the delivery of co-formulated ingredients. It also serves as a solvent, contributing to the overall textural cohesion and consistency of skincare preparations.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
No specific optimal pH range for PEG-75 Oleate has been precisely determined. However, structurally similar PEG-75 Lanolin demonstrates stability within a pH range of 2 to 10, while general PEG-75 is reported stable between pH 5.0 and 7.0. As an ester, PEG-75 Oleate is inherently susceptible to hydrolysis under extremely acidic or alkaline conditions, which may impact its long-term stability and efficacy.
Conflicts
- Potential contamination by impurities such as ethylene oxide and 1,4-dioxane
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed the general safety of polyethylene glycols (PEGs) for cosmetic use, removing previous caveats regarding application on damaged skin. While specific maximum concentration data for PEG-75 Oleate is not widely reported, similar PEG esters have been deemed safe in concentrations up to 10%, and other PEG compounds (e.g., PEG-75) have undergone review at concentrations spanning 0.2% to 36%. Concerns persist regarding potential contamination by residual impurities, notably ethylene oxide and 1,4-dioxane. This ingredient is also listed in the FDA's inventory under 21 CFR 175.300 as an indirect food additive, indicating broader regulatory acceptance.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-75 Oleate is a valuable multifunctional ingredient, effectively stabilizing formulations, enhancing skin hydration, and facilitating ingredient delivery across all skin types, provided stringent purity standards are met to mitigate potential contaminant risks.
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