SCI-FIT's® Nitrox™ Soft Gels is Arginine Alpha-Ketogluterate in a sustained release formula which is pH buffered to ensure maximum absorption. Arginine released into the bloodstream will dramatically increase Nitric Oxide production. Increases in Nitric Oxide may lead to extended and enhanced ?muscle pump? after training, improved endurance and recovery time, improved workout capacity, and increased sexual vigor.