Carbonated Energy Drink with Taurine, Ginseng, L-Carnitine, Caffeine and B Vitamins with Sugars and Sweetener. Tear into a can of Monster Energy, the meanest energy drink on the planet. The Monster Energy blend combined with caffeine gives you the energy you need in a smooth easy drinking taste. Taurine, L-carnitine, ginseng, caffeine, and B vitamins will give you the energy you need at any point in your day.