I started July 1st doing a Juice cleanse, then switched over to the Master-Cleanse after 2 weeks and just completed my 21st day of total fasting...of which I just broke with fresh organic watermelon. I lost about 35 lbs. It wasn't all the cleanse though as I did lots of cardio and steam bathes at the gym.
I wanted to go another week but my schedule and body is telling me to take a break.