Polyglycan-SA is a patented formulation designed to replace synovial fluid lost during surgery and contains naturally occurring components of synovia that play a central role in maintaining the homeostatic environment of the joint. See package insert for complete product details. Each 2.5 mL vial contains: • Hyaluronic acid sodium salt, 12.5 mg • Sodium chondroitin sulfate, 250 mg • N-acetyl-D-glucosamine, 250 mg