ARTHROXON PLUS Joint Maintenance Support 8 Component Formula ARTHROXON PLUS is a complex joint maintenance support formula based on our 8 component matrix that includes more unique ingredients in addition to the most common ones. NEM (Natural Eggshell Membrane) has been studied for use in these types of formulas. The eggshell membrane is a natural source of combined Glucosamine, Chondroitin and Hyaluronic Acid. ARTHROXON PLUS also contains the preferred Type II Collagen, plus we directly added the well-known and popular Chondroitin, Glucosamine and MSM. The product is fortified with Vitamin C and Manganese. Manganese helps with the normal formation of connective tissue and the maintenance of normal bones! Vitamin C contributes to collagen formation for the normal function of cartilages, blood vessels, gums, teeth and skin.