Did you even wonder how the Mexican super labs make meth. Since the USA has restricted sales of ephedra by placing cold tablets behind the counter and making people sign for them, Drug labs in the USA have died out from what they once were. The current problem is that in Mexico "drug companies" are selling ephedra in pure brick form to mexican drug lords so the need for refining the cold tablets for ephedra has past and the end product is much purer.