Active Ingredients Per 2 Chews: L-Lysine, 250 mg; N,N-Dimethylglycine (DMG) HCl, 50 mg. Inactive Ingredients: brewers yeast, canola oil, chicken liver flavor, citric acid, glycerin, mixed tocopherols, propionic acid, proprietary blend (maltodextrin, sodium alginate and calcium sulfate), rosemary extract, silicon dioxide, soy lecithin, vegetable oil.