Tracy: Robin Anthony's Renu Herbs colon cleanser proved a bit too strong for me , I was in the .. I read some of the negative testimonials above & am shocked. Renu Herbs are diet supplements that were created by Robin Anthony ( established in ) that claim to be a quick and effective solution to a healthier body. Jul 12, How many benefits do Robin Anthony's Renu Herbs actually offer? We looked at all the facts for you in this review to bring you the bottom line.