Formulation and Characterization of Natural Foaming Face Wash Utilizing Hazelnut Oil Microemulsion for Enhanced Skin Nourishment and Stability

This research focuses on developing and characterizing a natural foaming face wash incorporating hazelnut oil microemulsion for enhanced skin nourishment. Three distinct formulations were developed utilizing natural surfactants combined with two different types of hazelnut oil microemulsions (oil-in-water and water-in-oil). The microemulsion systems demonstrated remarkable stability, achieving optimal particle sizes ranging from 120-130 nm, with conductivity values that effectively characterized their respective types. The formulated face wash products exhibited favourable physicochemical properties, maintaining pH values within the skin-compatible range of 6.60-6.70, along with suitable viscosity (9-11 cps) this is good for foam formation. Performance testing revealed strong foaming characteristics across all formulations, with foam heights reaching 35-38 mm and stability percentages between 92-94%. Comprehensive stability assessments conducted over a two-month period under various temperature conditions confirmed consistent preservation of critical parameters including appearance, color, odor, and pH levels. While initial safety evaluations showed no skin irritation and excellent washability characteristics, additional scientific investigation incorporating clinical studies, long-term stability analysis, and detailed skin benefit assessments would be valuable to fully validate the formulation’s overall quality and efficacy as a natural skincare solution.