NoX2 Overnight Extender NO2 & Citrulline! Get Full Muscle Building Myodilation While You Sleep! The next Generation of Nitric Oxide technology.Pinnacle NOX2 Overnight Xtender is a breakthrough of remarkable proportions that extends the benefits of our best selling NOX2 complex further! Taken before bedtime, NOX2 Overnight Xtender will keep optimizing muscle-building myodilation throughout the night. Containing the amino acid citrulline (in addition to A-AKG and A-KIC), a precursor to arginine, NOX2 Overnight Xtender is designed to promote a continuous nitric oxide pump to further help maintain myodilation and anabolic cell signaling. NOX2 Overnight Extender is taken at night, when the bodies own production of NO is likely to be at its lowest. L-arginine complex, which is transported into endothelial cells to produce NO, and L-citrulline-HP, which is transported by a different mechanism and then is recycled into L-arginine, which the body can then use to create more NO. This different mechanism is important because when the L-arginine transporter sees to much L-arginine, it stops absorbing, so less L-arginine in the system means less NO production. Furthermore, NOX2 enhancers may help reduce the loss of nitrogen and enhance the nitric oxide synthase, an enzyme used to convert arginine to NO. NOX2 Overnight Extender is unique compared to other products in the market.