Jarrow Formulas Glucosamine + Chondroitin + MSM (capsules) contains a combination of glucosamine sulfate, chondroitin sulfate, and MSM (methylsulfonylmethane). Each serving provides 1,500 mg of glucosamine, 1,200 mg of chondroitin, and 300 mg of MSM. The glucosamine in this product is stabilized with potassium chloride (KCl) and supplemented with vitamin C and manganese. The capsules are easy to take and suitable for daily use. Available in packages of 120 and 240 capsules.