What is the most potent hallucinogen?

lysergic acid diethylamide (LSD) and Dimethyltryptamine (DMT)

although the vast majority of possible psychoactive and psychedelic drugs are yet undiscovered by man.

edit: DMT is wrong info, 5-MeO-DMT is the answer your looking for, and is not the same as DMT at all.

- Norwegian-acidfiend