Colon Cleansing?

Thank you for all the great responses to my question. Perhaps I wasn’t clear enough on one aspect. I am not trying to lose any weight at all, I just want to detoxify and flush my body, and rid myself of potential waste and/or other leftovers in my system an otherwise balanced diet cannot resolve. I am afraid that just that condition reduces energy levels, and will, when finished help clear skin, and increase agility. Any advice, now that I am more clear?