Cellucor – C4 Original

One of the country’s top-selling pre-workout supplements, C4 Original (available here in Fruit Punch or Icy Blue Razz) serves athletes on multiple fronts: 150mg of caffeine for energy, 1.6g of CarnoSyn beta-alanine for endurance, 1g of arginine AKG for explosiveness, and 1g of creatine nitrate for performance.