Big Boy is a non-stimulant, MUSCLE SWELLING SYSTEM that maximizes your muscle size via multiple pathways. Big Boy will pump your muscles with more blood and water than you ever thought possible. And when we say pumps, we mean intense, fully engorged, muscle pumps that last for hours! Black Ginger extract is a key ingredient that's never been used in a muscle pumping product. Traditionally this potent ingredient is used mainly to increase blood-flow due to it's high levels of PDE5 inhibiting 5,7 dimethoxyflavone, but it's also incredible effective as increasing the size and length of a muscular pump! As an added bonus, Black Ginger Extract boosts the levels of feel-good neurotransmitters and their sensitivity by stimulating dopaminergic function in the hypthalamus. Now you can have both a body and mind pump at the gym!