Elk velvet antler is an all natural product. It does not contain any added fillers, artificial preservatives, colors or flavors. Velvet antler is the only renewable source of glucosamine and chondroitin and the only source that can be harvested each year without any harm to the host animal. Velvet antler contains many components including collagen, prostaglandin, glucosamine, proteoglycans, hyaluronic acid, and IGF-1. These components play a major role in reducing inflammation and swelling, supporting joint structure and function, and improving mobility.