while Rockstar contains 160 mg, albeit in a larger 17-ounce can. But what energy drink has the absolute most caffeine? Well, for a while, it was something called Redline Xtreme, but that's since ...

Rockstar Energy Drink teamed up with an influential celebrity barber to cut through to its Hispanic target and boost consumer engagement in the US. As a challenger brand, Rockstar Energy Drink holds ...

and Rockstar Xdurance. Each of these packs a 300-milligram caffeine wallop per can. To put that in perspective, Red Bull, which is the best-selling energy drink in the U.S., contains a ...

Boxing champion Tyson Fury is aiming to be a knockout with shoppers, taking on Red Bull and Monster with a new energy drink bearing his name. The brand, named Furocity, launched yesterday and is ...