Add one BLACK STACK to GENIUS, FEEL GOOD, or ATHLETE for a truly powerful boost; or “as is” for those special days in nature, contemplation, or relaxation. 2.5x the proprietary BRAINSUPREME blend as our other products. Be aware, this may be a bit much for people just getting to know BRAINSUPREME’s products, but if you’re looking to take our Next Level Shit to the next level, The Black Stack is the ticket.