It works pretty good! the first week if you haven't been eating clean or you are backed up, it will definitely get your waste out of there! You will feel relieved of any bloating. I had a minor stomach cramp the first 2 - 3 days which triggered the urge to go but nothing major or too painful. The first 3 days I literally was going 5-8 times within 24 hrs! until my body got out everything that was backed up. I also ate pretty clean the entire 2 weeks I took it. No Soda, VERY minimal carbs, No Alcohol, No Red Meat, and no Sweets... like pastries and desserts. So by week two it had slowed down to maybe 3-4 times a day. I'm not sure why you can't do it longer than 14 days but I am starting again in 6 weeks!