Cellucor C4 Original Explosive is the best overall pre-workout supplement. It is the original Explosive pre-workout, naturally and artificially flavored. C4 Original Explosive is a dietary supplement that boosts your energy, muscle strength, and pumps. It also contains CarnoSyn Beta-Alanine, which supports muscular endurance and fights muscle fatigue. Simply put, this product can ignite your fitness journey, whether you’re a beginner or an elite competitor.