Anika Therapeutics thinks tissue repair is roosterrific. The company uses hyaluronic acid (HA), a natural polymer extracted from rooster combs and other sources, to make products that treat bone, cartilage, and soft tissue. Anika's Orthovisc treats osteoarthritis of the knee and other joints and is available in the US and overseas. (DePuy Mitek sells the product in the US.) The company also makes and sells products that maintain eye shape and protect tissue during eye surgery, some of which are marketed by Bausch & Lomb. Other items include surgical anti-adhesive products, veterinary osteoarthritis therapies, and dermatology products.