The IF #2 is great because it vacuums up and soaks up all that toxicity. The danger would be that it can be quite binding when you take it and it is very important to (a) make sure your bowels are mioving well before you take this (IF#1 is the trick for that, at least 1-3 times a day you should be going), and also (b) make sure to drink lots and lots of water while taking this.
The problem happens when all these toxins get out of your system and then have nowhere to go, they can absorb back into your system making you sicker.