BCS Labs Extreme NOS 2 is the first Nitric Oxide product to break ground with Kre-Alkalyn, which will change Nitric Oxide forever. Increased levels of Nitric Oxide (L-Arginine, AKG) stacked with creatines replacement, Kre-Alkalyn (10x more effective gram for gram), will deliver muscle strength beyond your imagination in just your 1st week, if taken as directed. Extreme NOS 2 showcases the most valued amino acids such as L- Citrulline, and L- Orthine. Extreme NOS 2 utilizes L- Citrulline for it's ability to recycle itself into Nitric Oxide for extended results!