L-arginine, an amino acid, gets converted in the body to nitric oxide. Nitric oxide causes blood vessels to open wider for improved blood flow. This allows a greater amount of nutrients and oxygen to flow through your blood vessels and direct them where they are needed, thus giving you better energy and endurance.
OptiNOs, our nitric oxide booster & muscle builder, turns on pathways in our body that signal the production of nitric oxide and protein synthesis.
Which is why we've combined OptiNOs with L-Arginine; to give you the ultimate nitric oxide booster available on the market today.