I just finished a cleanse last week. I was planning on doing 14 days on the cleanse and did the liver cleanse after day 10. It wiped me out and I was exhausted and had to stop the cleanse after 11 days. I did about 20-50 stones without the parasite program and it worked well for me. However, there is one stuck against my spine which is causing some pain so I'm drinking lots of apple juice and will do 2-3 more liver cleanses, once every two weeks. I had a pretty clean system to start with as I've done Colloidal Silver and Aloe Vera in the past. Just make sure you are fairly clean.