Best Naturals L-Arginine NO Booster Triple Strength 1300 mg Serving 120 Veg Capsules. Certain research publications indicate that L-Arginine may help support the following: Supports healthy blood circulation, Supports immune system, Supports positive benefits on athletic performance. INGREDIENTS L-Arginine HCl, AAKG (L-Arginine-Alpha-Ketoglutarate), L-Citrulline Malate, Beet Root Powder (Beta Vulgaris), Cellulose (Capsule), Magnesium Stearate, Silicon Dioxide DIRECTIONS As a dietary supplement, take two (2) capsules daily preferable with food 1 to 2 hours prior to physical activity or as directed by your qualified healthcare professional. See moreTOP QUALITY GMP CERTIFIED PRODUCTS - All Best Naturals products are manufactured in accordance with Good Manufacturing Practices (GMP), among the highest standards in the world -- Proudly Made in USA -- Purity Potency. No Articial Color, Flavor or Sweetener, No Preservatives, No Sugar, No Starch, No Corn, No Soy, No Egg, No Lactose, No Gluten, No Wheat, No Yeast, No Fish, No Sodium. Our Arginine capsule promotes nitric oxide production, which helps support circulation and muscles, Arginine may help stimulate the activity and increase the size of the thymus gland which begins to decrease in size after puberty. TRIPLE STRENGTH FORMULA - Our Arginine Nitric Oxide Booster made with L Arginine, AAKG, L-Citrulline Beet Root - which supports positive benefits on athletic performance. . 3rd Part Lab Tested - Our All Best Naturals Products come with 3rd Party Independent Lab Tested.