if you already bought it why dont you try it and see for yourself if its any good? i was just about to post the very same question about NO2 since a friend pointed me in its direction. heres a link that talks about it and from the link i gathered that it was bullshit, but i also wanted to see if any of you bros had personally tried it and what kind of results you got. from what im seeing it sounds like the verdict is towards it being bunk. laters.