Overview of Nanoemulsion

A novel drug delivery system has been developed to address the limitations of conventional drug delivery methods. This comprehensive review explores the nanoemulsion system. The interest in nanoscale emulsions has considerably grown in recent decades as a consequenceof their specific attributes such as high stability, attractive appearance, in addition to high performanceand sensorial advantage. In fact, it nanoemulsions are one of the major popular formulationssystems in the pharmaceutical and cosmeceutical fields.Nanoemulsions are colloidal dispersion systems that are thermodynamically stable, composed of two immiscible liquids mixed along with emulsifying agents. These come across as ultrafine dispersions whose differential drug loading; viscoelastic as well as visual properties can cater to a wide range of functionalities including drug delivery. However, there is still relatively narrow insight regarding development, manufacturing, fabrication and manipulation of nanoemulsions which primarily stems from the fact that conventional aspects of emulsion formation and stabilization only partially apply to nanoemulsions.This review provides insights into the formulation methods, characterization techniques, evaluation parameters, and diverse applications of nanoemulsion, offering a fundamental understanding of this innovative drug delivery system.