Sea Mussel by Foodscience Of Vermont. A dietary supplement to support proper connective tissue and joint functions. Sea Mussel is pure, freeze-dried Green-Lipped Mussel from New Zealand. It's a rich source of amino acids, protein, minerals, and glycosaminoglycans (GAGs). GAGs make up the core of all connective tissue. Sea Mussel supports the restoration and maintenance processes of synovial fluid and connective tissues including joints, ligaments, tendons, cartilage and intervertebral discs.