In addition to ingredient verification and source audit, NutraHalal employs the highly scientific method of DNA testing of its products. DNA testing looks in each product to verify the ingredients by detecting the DNA of its main ingredients. The ingredients are compared to a large database of archived DNA library. In addition, it is used to verify the absence of unwanted ingredients, such as pork. Furthermore, it is used to rule out the presence of animal ingredients in vegan products. The DNA testing method used by NutraHalal is high sensitive, bringing together a number of scientific disciplines including food science, molecular biology and information technology.