My buddy has a ton of it. It is allegedly a very potent Aromatase Inhibitor. I believe it was in the orginal Gaspari Novedex XT. He swears it works on the same level as Arimidex/Aromasin. He said that people were just dosing it too high. And like any other high dosed AI it caused libido/joint problems. Does anyone here have any experiences with it good or bad. He only uses 25 mgs every day on about 500 mgs test and he loves it.