Carbonated Energy Drink with Taurine, Ginseng, Caffeine, L-Carnitine and B Vitamins with Sweeteners. ZERO SUGAR| Monster Energy Ultra Fiesta Mango has a refreshing taste and doesn't taste like traditional energy drinks and still has the full Monster energy blend. FRESH FLAVOUR ENERGY| Monster Ultra's lighter tasting flavour profile is a less sweet, carbonated energy drink that delivers refreshment, with 160mgs of Caffeine per can. Monster Energy Ultra is great for any occasion. UNLEASH THE ULTRA BEAST | Sleep later, cause tonight we're going to Fiesta!. Ultra Fiesta Mango celebrates the nights that turn into mornings and the friends we now call family. Zero sugar Ultra Fiesta Mango blends juicy mango flavour into the Ultra we love finished-off with a full load of our Monster Energy blend. De nada!. Unleash The Ultra Beast