I received a notice for a position with 8 days before the experimentation while i was high. I don’t have much fat on me but i smoke multiple times a week. I started with working out at the gym to sweat as much as i could rigorously for 3 days. I then received the 3-day detox. You will be in the bathroom a lot. Experimented on the 7th day evening and passed. I had a 32oz water bottle and tried to drink about 10 of them a day. The drink isn’t too bad but certainly wouldn’t be my first flavor of choice. Follow the instructions and I don’t see a reason to purchase the longer packs unless you are an extraneous situation.