I've been taking colosan on and off for around 7 years. Nowadays I just use it if I have over eaten fibrous foods which made be bloated and colicky. I originally took a teaspoon at night with a little lemon juice and in the morning I had a very happy elimination. When I used it for the first week I eliminated what I can only describe as material that looked like black tar, but without and discomfort. Since then I haven't looked back. It gave me my energy back and an overall sense of lightness and wellness.
I also gave it to my sister who was also thrilled as it helped her so much with her occasional constipation.