Welcome to the next generation of Pre-Workout Supplementation! Description: With 4-NitroTropic you're not getting a bunch of "bubbles" or here today, gone tomorrow "designer" ingredients without any proven science behind them.4-NitroTropic delivers scientifically proven ingredients, in the proper amounts needed to give you the explosive energy, insane muscle pumps and crisp mental focus required to push through the most demanding workouts!Notes: * Explosive Energy * Insane Muscle Pumps * Laser Sharp Mental Focus