Polygylcan-SA is a patented formulation designed to replace synovial fluid lost during surgery. This solution contains naturally occurring components of synovia that play a central role in maintaining the homeostatic environment of the joint. Hyaluronic Acid + Chondroitin sulfates C4 & C6 + N-acetyl-D-glucosamine Sterile Solution. PKG: 2.5ml vials, sold by the box of 6 vials