They are Jerkbox, 20mg E and 200 mg's Caffeine per serving in Ripped and Diet Fuel(Twinlab, not Prolab) per serving, 2 pills and 3 pills, respectively. I'd try Stimulant free Ripped Fuel if I were you, it's cheap, and it has phenylalanine in it, which kills my appetite and cravings like no other supplement, it also has 200 mg's caffeine. If not Twinlabs, try any of the other new Ephedrine free thermogenics out there, it seems to be the new booming business now, everyone has one.