Both NO2 BLACK® and NO2 BLACK FULL CYCLE® are advanced hemodilation products that promote vascularity, strength and pumps. NO2 BLACK® offers three key ingredients; Arginine AKG, ActiNOS®, and Alpha Lipoic Acid. Combined, Arginine AKG and ActiNOS® support nitric oxide (NO) on two fronts while Alpha Lipoic Acid promotes insulin sensitivity in muscle tissue. NO2 BLACK FULL CYCLE® incorporates ActiNOS®, multiple forms of L-Arginine, Arginine precursors, N-Acetyl-L-Carnitine Hydrochloride and Grape Seed Extract (GSE). L-Carnitine helps to transport lipids into cells for energy production and GSE may facilitate oxygen utilization and muscle bioenergetics. Both formulas are well suited for supporting athletic performance. NO2 BLACK® may be a good choice for those seeking pumps while facilitating optimal nutrient uptake into muscles. NO2 BLACK FULL CYCLE® may be well suited for those who want peak hemodilation and extended workout potential.