PRE X5 is an advance pre workout formula designed to pump in explosive energy and vitals in your body, required to push your weight lifting regime to next level and uplifts your endurance to train harder. Powered by citrulline dl malate, creatine nitrate, caffeine anhydrous, beta-alanine and taurine, prex5 is must have for bodybuilders and athletes to deliver your muscles phenomenal power, pump and energy when working out. What is a pre-workout. Pre-workout is an unisex nutrition, bound to be taken before the workout which enables you to lift better and increases your endurance to train harder. Advantages of PRE X5, explosive instant energy, enhanced strength, extensive muscle pump, extended stamina and power, and endurance. Any side effects? No. It just has a tingling effect because of the ingredient beta-alanine.