Increase energy and focus with Cellucor C4 Original Pre Workout! Explosive energy and heightened focus Support muscular endurance Enhance muscle pumps 150mg Caffeine 1.6g Carnosyn Beta-Alanine 1g Creatine Nitrate (NO3-T) 1g Arginine AKG Explosive energy, heightened focus and an overwhelming urge to tackle any challenge - that's the C4 experience. Millions of people ranging from beginners all the way up to the elite competitors, have relied on C4 pre-workout to help them turn their ambitions into achievements. Cellucor C4 Original lives up to its solid reputation with a classic formula for advanced energy, endurance, focus and pumps! Whether youre just starting a fitness journey or youre striving to reach that next level, C4 Original will help you unlock your full potential. C4 Original contains CarnoSyn Beta Alanine, an amino acid, which converts to a compound in your body called carnosine. It is the only patented and clinically studied form of beta-alanine that has been shown to support muscular endurance. Directions: Take one serving (1 scoop) of C4 Original, mixed with 6 fl. oz. of water 20-30 minutes before training. Some individuals may experience a harmless tingling sensation, which is attributed to beta alanine .