Amway Nutrilite Glucosamine HCl with Boswellia which is an exclusive formula contains Glucosamine a nutritional 'Building Block' that supports healthy joints. It contains blend of Glucosamine HCl with Boswellia and bromelain. It also contains acerola concentrate and citrus bioflavonoids. Glucosamine is the main building block for semi - fluids that lubricate joints.