Glucosamine Hydrochloride 600 mg, Sodium Chondroitin Sulfate 300 mg, Methylsulfonylmethane (MSM) 250 mg, Manganese (Manganese Ascorbate) 3 mg. Other Ingredients:Brewers dried yeast, dextrose, magnesium stearate, microcrystalline cellulose, natural & artificial flavors, and silicon dioxide.