 In late December 2010, a reformulated version of the drink was put on shelves.The new product had exactly the same design as the original, but the caffeine, guarana, and taurine (ingredients in the original drink) had been taken out of the formula and replaced by Red 40, a food coloring agent.However, sales of the original drink continued, usually for a price of roughly $3 per 24 ounce can.