There are different bowel cleaners. Either based on fiber or oxygen.
I read the info on the cleanse max, but like many cleanses they just contain herbs and that does not get your bowels clean or your liver.
Read up on P&B shakes in FAQ (may be you have to go to the Bowel Cleanse Forum )at top of page. There is colonix also based on fiber http://www.drnatura.com .
Oxygen types, colosan you can google that is sold in different places and OxypowderOxypowder .com">http://www. Oxypowder .com .
For instant help a salt water flush or 1-3 tsp Epsom Salt in a glass of water.