Description: Schiff Glucosamine 2000mg contains twice the amount of glucosamine per pill as some other leading brands. Glucosamine helps support cartilage and maintain structural integrity of joints and connective tissue. It is a building block for joint fluid, cartilage, ligaments, tendons, membranes and blood vessels. Schiff uses glucosamine hydrochloride (HCl), which has the highest potency of active glucosamine among glucosamine forms. Glucosamine hydrochloride is about 83% glucosamine, while most brands use glucosamine sulfate that is only about 65% glucosamine.