⚡ Power Up Your Day with Zero Guilt! Indulge in flavor without the sugar or calories. Fuel your day with 140 mg of caffeine per can! Enjoy the bold taste of Ultra Blue. Be part of the Monster community! Perfect for on-the-go professionals. 140 mg Caffeine Zero Calories Zero Sugar Monster Energy Ultra Zero Sugar Energy Drinks offer a refreshing boost with 140 mg of caffeine per 16-ounce can, all while being sugar-free and calorie-free. Enjoy the bold Ultra Blue flavor in a convenient 12-pack, perfect for busy professionals seeking energy without compromise.