Rockstar Punched was my first run-in with the Rockstar brand of energy drinks, and it gave me a high opinion of the brand.  So when I saw that my local megamart was carrying the zero carb version of Rockstar, I decided to splurge.

In most cases, Sucralose is the magic ingredient.  I look for it when purchasing "zero carb" or "sugar free" beverages, as it does a great job of emulating the flavor profile of sugar.  Rockstar Zero Carb is proof that Sucralose is not a magic ingredient.