Manufactured in a USA cGMP Facility: All Jacked Factory supplements are manufactured in a state-of-the-art cGMP facility. We strive to challenge the status quo by delivering the highest standards in quality. How It Works: Improved nitric oxide production helps improve blood flow throughout the body, supporting every function from workout performance to heart health. The cutting-edge N.O. XT formula uses only premium N.O boosting ingredients, including the most potent form of L-Arginine on the market—Nitrosigine Inositol-Stabilized Arginine Silicate. Stacked with L Citrulline, L Glutathione, and Bioperine, N.O XT is a hard-hitting nitric oxide supplement for both men and women. Increases Pre Workout Efficiency: Jacked Factory's nitric oxide booster push your exercise to a new level. The strong combination of the L-Arginine, L Citrulline and Nitrosigine work synergistically to increase nitric oxide production, bring you strong muscular pumps and endurance, and delay fatigue in the gym. Boosts Energy, Muscle Growth and Recovery: Nitric oxide is important for relaxing and expanding blood vessels while you train. Boosting nitric oxide helps fuel nutrient delivery to working muscle tissue, creating an optimal anabolic environment for muscle building. The increased blood flow will enhance your pumps, strength, and endurance in the gym. Elite Nitric Oxide Booster: Power through your workouts with skin-tearing pumps, endless endurance, and increased strength. N.O. XT is scientifically formulated using cutting-edge ingredients that help boost nitric oxide and enhance blood flow to the muscles during training. Improved blood flow allows for greater nutrient delivery and muscle fullness.