Essential amino acid for protein metabolism L-Lysine is an essential amino acid necessary for growth, development, tissue health and repair. Take 1 capsule 1 to 3 times daily, preferably on an empty stomach or as recommended by a healthcare professional. Magnesium stearate (vegetable source) and cellulose. Capsule consists of bovine gelatin. No wheat, gluten, soy, dairy, egg, fish/shellfish, or peanuts/tree nuts. If you have a medical condition, are pregnant, breast-feeding, trying to become pregnant, are under 18 years of age, or are taking medication, consult a healthcare professional before using this product. Keep out of reach of children. Store in a cool, dry place. Keep container tightly closed. Reference amount for daily intake in % †Reference amount for daily intake not established.