NITRIC OXIDE SUPPORT: L-Arginine and L-Citrulline help the body naturally produce nitric oxide, supporting circulation, vascular health, and oxygen delivery during activity.* ENDURANCE & RECOVERY SUPPORT: L-Arginine and L-Citrulline assist stamina during workouts and promote post-exercise recovery, helping maintain performance and overall vitality.* PURE FORMULA: Bestvite L-Arginine & L-Citrulline contains no stearates, is non-GMO, gluten-free and vegan. Each capsule contains 500mg of L-Arginine and 250mg of L-Citrulline. BESTVITE QUALITY: All Bestvite products are manufactured in the USA in accordance with GMP standards and undergo 3rd-party testing to ensure purity and potency before release. NSF GMP CERTIFIED FACILITY: Bestvite’s facility is NSF/ANSI 455-2 Dietary Supplements Good Manufacturing Practice (GMP) certified. Earning GMP certification from NSF verifies that a manufacturing facility has the proper methods, equipment, facilities, and controls in place to produce dietary supplement products. L-Arginine is an amino acid involved in DNA synthesis and protein production. L-Citrulline is a non-essential amino acid and a byproduct of protein metabolism.*