Two complementary amino acids in one potent capsule: 500mg L-Arginine and 250mg of L-Ornithine per servingMay 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 & L-Ornithine are free form Amino Acids. Because of their similarities in function, these two amino acids work especially well together. Twinlab L-Arginine & 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. • Serving Size1CapsuleServings Per Container90Amount Per Serving % Daily Value(As L-Arginine Hydrochloride, L-Arginine) 500mg(As L-Ornithine Hydrochloride) 250mg Daily Value not establishedOther Ingredients:Gelatin, Stearic Acid, Silica, Medium Chain Triglycerides. • Yeast Free • Wheat Free