Science
Mechanism of Action
This ingredient functions by reducing the interfacial tension between immiscible oil and water phases, owing to its amphiphilic molecular structure, thereby creating stable emulsions. As a solubilizer and solvent, PEG-8 Oleate aids in the uniform distribution and dissolution of various ingredients. Furthermore, its PEG derivative nature allows it to form hydrogen bonds with water molecules on the skin, diminishing transepidermal water loss and boosting moisture retention.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
PEG-8 Oleate exhibits stability across a pH range of 4.0–7.5 (at 1:20 concentration) and is generally stable to moderately strong acids, alkalis, and salt solutions. It can be dispersed in water, dissolved in ethanol and isopropanol, and is miscible with fatty oils and paraffin.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has determined PEGs, including their fatty acid esters like oleates, are safe for use in cosmetics. The prior cautionary statement regarding PEG use on damaged skin was retracted by the CIR in 2010, affirming no safety concerns. PEG-8 is also approved for use by the FDA.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-8 Oleate is a valuable ingredient for precision skincare, effectively stabilizing formulations and enhancing skin hydration, with a well-established safety profile for all skin types.
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References
Sources