No Sir! We don't do these types of tests for our products which we consider FOOD! Many herb companies check (and rightfully so) because they mix herbs with drugs and do all other sorts of things, i.e. add fillers, binders, preservatives. Dherbs is simple! Pure herb in vegan capsule with our intent to help people. That's it! Now however, we do use divination to check the potency of our herbs and elixirs and we also utilize this method if we decide to check for anything else; however, it's very rare!