the 1 that doesn.t say "flush-free" r
trippruss Reviewed by trippruss on . NIcotinic ACid vitamIN B3(Niacin) I heard that Niacin helps clean your system out fast if u take enough.. anyone have experience with this at all? I have 50 250mg Niacin pills and my test might be on Thursday I smoked a few times over the weekend. I also have cranberry juice for purifying my system. Rating: 5