Increases intramuscular carnosine for less fatigue, longer endurance INGREDIENTS Vitamin B3 (as Niacin), Vitamin B-12 (as cyanocobalamin), L-Citrulline, Beta Alanine, L-Taurine, N-Acetyl L-Tyrosine, Choline Bitartrate, Stim Crazy Caffeine Complex: Caffeine Anhydrous, Cocoa Alkaloids Extract (Theobroma cacao L.)(seed), Dicaffeine Malate (Infinergy), Green Tea Extract (Camellia sinensis)(leaf) (50% Caffeine

SUPERIOR N.O. BOOSTER: While other products use L-Citrulline Malate, 5150 uses 4 grams of 100% pure L-Citrulline, ensuring massive blood flow that delivers nutrients where they're needed most. As a precursor to nitric oxide, it converts to Arginine in the liver for the most insane, long-lasting pumps. EVERLASTING ENDURANCE & RAPID RECOVERY: Defeat muscle fatigue and power through the gnarliest of workouts with 2.5 grams of Beta Alanine that helps block lactic acid buildup before it can start. JITTER-FREE INTENSITY & DRIVE: The Stim-Crazy Caffeine Complex delivers 400 mg of caffeine derived from 7 sources, including time-released Dicaffeine Malate and extracts from coffee, green tea, yerba mate, guarana, and green coffee. Destroy every session!. MEGA-DOSED ENERGY, FOCUS & PUMP! 5150's one-of-a-kind preworkout blend will give you insane energy, extreme pumps and vascularity, razor-sharp focus, intense motivation, and extended endurance.