Hyaluronic Acid or hyaluronate is an anionic, non-sulfated glycosaminoglycan distributed widely throughout connective, neural and epithelial tissues. It is also produced synthetically for its medicinal uses. Hyaluronic acid is used in eye surgery and to treat osteoarthritis of the knee; its injections into the knee joint are believed to increase the viscosity of the joint fluid, thereby lubricating the joint, cushioning the joint, and producing an analgesic effect. It is also used in lotions for treatment of dry skin. Hyaluronic acid has been used in the synthesis of biological scaffolds for wound healing applications. It is also used in anti adhesive products to prevent postoperative adhesions in pelvic and abdominal surgery.