Dietary supplement 2 capsules daily the natural choice to promote cartilage regeneration and support healthy joints easy swallow capsules 21st century. For a healthier future. The combination of glucosamine sulfate and chondroitin sulfate, found in soft cartilage, tendons, and synovial fluid, are essential to the healthy functioning of tendons and joints, especially with advancing age. 21st century's glucosamine and chondroitin, combines these two nutritional elements in the proper amounts for your effective use. This product is not, however, intended to replace the advice of your healthcare provider.