Red Bull, the top-selling energy drink in the United States ... list – Celcius Heat, Bang and Rockstar Xdurance, all with 300 mg of caffeine per can. Although this comes in under the 400 ...

There are more energy drink brands out there than just Red Bull. We sampled some of the most popular brands before ranking ...

Rockstar is currently the third most-consumed energy drink in the United States with ... hit the shelves with 12 ounces of liquid in each can. In 2001 Russ bought a black limo, painted his logo ...

Infused with ingredients including hemp seed oil and B vitamins, each 12-ounce can of Rockstar Unplugged also contains 80 mg of caffeine, about half the dose of other Rockstar energy drinks ...