Niacin is a bunch of crap

[Bob Diddy]

I was told by like 3 or 4 people that they knew for a fact that niacin worked thats all bs cause now im unemployed :-P i took the pills for 2 days and even took 2 that i crushed up into a powder a few hours before the test and it still didnt work :-P this is just future advice to people so your not in the same boat im in

[rnf232s]

The thing about niacin is that it makes you sweat more which will help eliminate it from your body, but not by any means get all of it out. If you took a piss test and only took that thinking it would cover it up then of course you would fail. It is only an aid to help in cleaning out, not a cover up or a quick fix.