Dietary Supplement. Extended muscle pump formula. Strength and pump. Powered by nitric oxide + beta-alanine. Intense pre-workout formula. The definition of definition. Far more than simple pump products, the first layer in this advanced dual-layer tablet kick-starts your workout using breakthrough fast-dissolve technology to flood muscles with volumizing nitric oxide (from l-arginine) and stamina-boosting beta-alanine. The time-release second layer dissipates more slowly to fuel sustained and intense 1-2 hour workouts. Pre- and post-workout muscle pump. Increased peak power and strength. Caffeine free - perfect for supplement stacking. Boosts blood flow during exercise. Increases aerobic capacity and delays fatigue. www.twinlabfuel.com. Facebook.com/twinlabel. CarnoSyn: carnosine synthesizer. A NSF GMP for sport registered facility. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.)