Triphala – Triphala Rasayana is a mild Ayurvedic natural herbal colon cleanser, tonifier, and rejuvenative that is non-habit forming. Most herbal and over the counter colon cleansers/laxatives are harsh and damaging on the gastro-intestinal tract. Triphala helps heal the GI tract including the colon.
The reason I choose the Tattva brand: http://www.tattvasherbs.com/servlet/Page?template=Supercritical%20Category>