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Psychotic by Insane Labz is the most potent stimulant pre training powder ever made. With the addition of the trademarked ingredient Ampiberry which prolongs the stimulant life of ingredients for as much as 3 hours. Psychotic is made for the elite athlete and should not be used by beginners. One scoop of this product compares to 3-4 scoops of any of the mainstream pre training powders on the market today.