VitaTree Shark Cartilage is a dietary supplement made from the dried and powdered cartilage of shark. It is an excellent source of calcium and glycosaminoglycans such as chondroitin. Shark cartilage has been reported to have anti-inflammation and analgesic activities, which may assist in reducing pain and inflammation of the joints. Shark cartilage may also help osteoarthritis by improving cartilage function. Shark cartilage contains immune system-stimulating mucopolysaccharides. It can also support a healthy immune function.