NOW Foods Arginine & Ornithine delivers a combination of two amino acids in every serving. Each dose provides 1,000 mg of free-form L-Arginine and 500 mg of L-Ornithine (as L-Ornithine HCl), formulated in a 2:1 ratio.

L-Arginine is a conditionally essential amino acid that plays a role in nitrogen metabolism. L-Ornithine is an amino acid that participates in the urea cycle, which is part of the body’s natural nitrogen management.

Produced by NOW Foods — a brand with over 50 years of commitment to quality — this formula is encapsulated in plant-based vegetarian capsules (hypromellose) and manufactured in a GMP-certified facility. With 125 servings per container, this 250-capsule pack represents outstanding value for those incorporating amino acid supplementation into their daily routine.