Innovative QualitySince 1932Dietary Supplement1 DailyClear Quality500 mg/500 mgDiscussion: L-Arginine & L-Ornithine are closely related amino acids with similar structure and function. L-Arginine, a nonessential amino acids, becomes part of protein in the body. L-Ornithine, a nonessential amino acid, is used to make the protein.ActivTab technology guarantees tablet disintegration within 30 minutes according to USP standards.