I found Cool Inc.'s Dr. Cool (Vitamin Dr. Cool) on the shelves of Bruno's grocery store in Tallahassee, FL. Dr. Cool is one of the imitations that claims to contain no preservatives, no artificial flavors, and no artificial sweetener. It also has vitamins C, B3, B2, and B6. I might also mention that it tastes horrible. We give Dr. Cool a one Dr Pepper can rating.