Psyllium being a natural fiber, it is not likely to affect the mucus line. Bentonite, I am not that sure. To be on the safe side, when you stop seeing mucoid plaque in the toilet, you might want to carry on with psyllium alone, without the Bentonite. As long as you see mucoid plaque you want to carry on with the Bentonite though, this plaque is full of toxins and without the bentonite, they will be reassimilated in the blood stream.