STRENGTH. ENERGY. FOCUS. PUMPS. If you're looking for the BEST PRE-WORKOUT available with 2X THE ENERGY of leading brands, then MR HYDE NITROX, is for you. Our unique formula was designed with a 400mg caffeine matrix, TeaCrine, Creatine HCL and Nitrosigine to deliver you intense, crash free energy, increased power output, enhanced strength and sustained pumps.