Surfactants are included in solid oral dosage forms to reduce the interface energy barrier betweenthe dissolution medium and the API, which will allow for more efficient wettability. Surfactants areamphiphilic substances that contain both hydrophobic (non-polar) and hydrophilic (polar) functionalgroups in their molecular structures [43,44].Surfactants are able to form micelles above the critical micelle concentration (CMC) in aqueousliquids such as the fluids found in the gastro-intestinal tract. These micelles can increase the solubilityof poorly water-soluble active ingredients by incorporating these molecules in the lipophilic cores ofthe micelles [43]