The Monster Zero Ultra Energy Drink offers a powerful punch with zero calories and zero sugar. It has both a re-tooled energy blend and a new sweetener system, but it still provides a deliciously smooth drinking flavor. The 16 fl oz canned energy drink will help you fight fatigue, improve your mental performance and motivate you to work or even play harder. It contains taurine, panax ginseng extract, l-carnitine, caffeine and guarana extract. All of these ingredients will help to provide you with the buzz you need to keep going. The Monster energy drink will both satisfy and inspire. Monster Ultra Zero, 24 Fl Oz.