C4 Performance Energy® fuels athletes of all types, from the gym to the court, on the field and in the ring. When every second matters, there’s no room for compromise. That’s why C4 Performance Energy® powers explosive energy and mental alertness with 140mg of caffeine. Made with ZERO grams of sugar or artificial colors, and delicious flavors unlike anything on the market, C4 Performance Energy® is the athlete’s choice for Energy That Hits™.