A Dietary SupplementUltra Joint Forte, provided by Douglas Laboratories, contains a synergistic combination of glucosamine, chondroitin, Methylsulfonylmethane (MSM), and astaxanthin. Glucosamine HCl is a well-absorbed source of glucosamine, an important precursor for the synthesis and maintenance of connective tissues. Chondroitin sulfate also supports formation of connective tissues, primarily joint cartilage, and helps protect existing cartilage. MSM, a derivative of DMSO, is a naturally occurring compound of biologically available sulfur. Astaxanthin is a natural carotenoid that can help modulate the body’s normal inflammatory response.