Now 50% more explosive. Pre-workout powerful energy intensifier with XCelicor. DO NOT EXCEED RECOMMENDED DAILY INTAKE. USE ONLY AS DIRECTED. Take one serving (1 scoop) of Cellucor C4 50X, mixed with 4-6 fl. oz of water 20-30 minutes before training. Once tolerance has been assessed and you are looking for an additional boost of energy, take one additional serving (1 scoop) with serving taken before training. DO NOT EXCEED 2 SCOOPS PER DAY. During your workout, it is recommended that you drink plenty of water or performance beverage such as Cellucor Alpha Amino to stay hydrated. Some individuals may experience a harmless tingling sensation, which is attributed to beta alanine.