Defcon1 Black Label is our world famous pre-workout taken to the next level. If you love Defcon1, wait till you experience how Black Label increases and amplifies an already winning formula. We understand that when it comes to pumps and strength, there is always a desire for more. Well, more is exactly what you get with Defcon1 Black Label. This 40 serve nuclear arsenal is bursting full of high-quality ingredients to place your body into the highest state of alert.