Nitraflex pre-workout drives rapid, explosive training results, amping up your body’s energy, stamina, Nitric Oxide (NO), and testosterone levels. Formulated with proven muscle builders like L-Citrulline malate, L-Arginine, L-Arginine Alpha-ketoglutarate (AKG) amino acids, and Calcium fructoborate (CFB), a high-potency Boron variant that supports free testosterone.