I did the 10 day first as I am an everyday smoker, but I still experimented positive. I looked at the on line directions and it says take 8oz of water with every 3 sets of pills, but the container says take 8oz of water with every pill. I followed the container; I think I got too much water. Also, the liquid part I used unfiltered tap water instead of filtered or distilled. Then, I ordered the 2 day program and drank 8oz of water with each 3 sets of pills and drank the liquid part with distilled water and when I experimented the next morning it was negative! The following morning was negative too and that was the day of the experimentation!