Active Ingredients per 2 Soft Chews: L-Lysine (Monohydrochloride) 500 mg, Ascorbic Acid (Vitamin C) 100 mg, Astragalus Root 50 mg. Inactive Ingredients: Brewers Dried Yeast, Canola Oil, Dried Potato Product, Flaxseed, Glycerin, Lecithin, Maltodextrin, Mixed Tocopherols, Natural Flavoring, Rosemary Extract, Sorbic Acid, Tapioca Starch, Vegetable Oil, Water.