L-Lysine is an essential amino acid that is found in large quantities in muscles. The normal metabolism of Lysine depends on many nutrients such as Niacin, Vitamin B-6, Riboflavin, Vitamin C, Glutamic Acid, and iron. Lysine is related to bone growth, and helps absorb calcium. It is also useful in collagen formation. Composition: L-Lysine...............................350 mg. Gelatin Directions for use: As a dietary supplement, take one (1) capsule daily with a meal. Presentation: 50 capsules of 350 mg.