Oxy P is mostly magnesium and when that mixes with the digestive juices in your intestinal tract it releases oxygen which will break down the gunk stuck to the walls of your intestinal tract/colon and you pass it as this dark stanky liquid poo and not ropes.
Try not to think of the cleanse as the "missing link" but justas the catalyst and clean up. The cleanses will take the accumulated crap out so you system will operate more efficiently and "heal itself" The cleanses are just tools so do them diligently but they are not the goal. The real key will always be balanced nutrition and regular exercise so focus and make nutrition your main goal as that is where the actual healing and rebuilding happens after you've done the cleanses.