Enjoy Twinlab L-Arginine/L-Ornith Fuel - 90 capsules every day at these amazing prices! Two complementary amino acids in one potent capsule: 500mg L-Arginine and 250mg of L-Ornithine per serving May help support healthy blood flow Supports increased strength and lean body mass L-Arginine is essential to the production of Nitric Oxide. It is an essential amino acid that helps promote lean muscle mass, immune system function, and healthy liver function. L-Ornitine is an essential amino acid necessary for building lean muscle mass, promoting healthy immune system function, and a healthy liver. Twinlab's L-Arginine and L-Ornithine are free form Amino Acids. Because of their similarities in function, these two amino acids work especially well together. Twinlab L-Arginine and L-Ornithine Capsules are easy to swallow and assimilate. Well tolerated by most highly allergic individuals. This product is manufactured at a state of the art facility that is NSF certified for sport. Product characteristics include: Serving Size1Capsule Servings Per Container90 Amount Per Serving % Daily Value (As L-Arginine Hydrochloride, L-Arginine) 500mg (As L-Ornithine Hydrochloride) 250mg Daily Value not established Other Ingredients: Gelatin, Stearic Acid, Silica, Medium Chain Triglycerides. (Please note: Description is informational only. Always read the product label before use and check with your health professional before using this product)