I have been using herbal laxatives for a couple of years and was getting worried about the harm I might be doing to myself. I have suffered from constipation since having a hysterectomy 15 years ago. The Colosan power really works for me, I take a rounded teaspoon at night with some PLJ (pure lemon juice cordial). I feel more confident that the Colosan is not harming my body in the same was as herbal laxatives.