The L-Arginine Supplement supports exercise performance along with improved exercise endurance and recovery. It supports muscle function and helps take your workouts to the next level by aiding in achieving an enhanced pump. Key ingredients include Niacin, Calcium, L-Arginine, L-Arginine AKG 2:1 Extract, L-Citrulline, L-Citrulline Malate Extract, and Beta Alanine. Capsuled in the USA with globally sourced ingredients at FDA-registered and GMP-certified facilities, it undergoes third-party laboratory testing . This non-GMO supplement is corn-free and lactose-free. Ingredients: Niacin, Calcium, L-Arginine, L-Arginine AKG 2:1 Extract, L-Citrulline, L-Citrulline Malate Extract, Beta Alanine. Inactive Ingredients: Cellulose (Vegetable Capsule), Magnesium Stearate (vegetable), Silicon Dioxide.