Dietary Supplement Building Block For Protein* As L-Lysine HCI One Per Day L-Lysine is an essential amino acid that cannot be made by the body.* No Yeast, No Wheat, No Gluten, No Milk or Milk Derivatives, No Lactose, No Sugar, No Preservatives, No Soy, No Artificial Color, No Artificial Flavor, No Sodium. 1-800-925-4733 *These statements have not been evaluated by the Good and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. 100% Satisfaction guaranteed with all Walgreens products or your money back.