USPLabs Jack3d gives you the mad aggressive desire and ability to lift more weight, pump out more reps and have crazy lasting energy, along with sick muscle-engorging pumps. Jacked is easily the most intense pre-workout product you will ever want to use again. The amount of energy and focus is perfect, pumps and vascularity will be out of control, but most importantly you will feel great throughout your entire workout. No crash, no bloat, no headaches, no blow workouts.