Perna is a dietary supplement to support proper connective tissue and joint functions. Perna is pure, freeze-dried Green-Lipped Mussel (Perna canaliculus) from New Zealand. Its a rich source of amino acids, protein, naturally chelated minerals and glycosaminoglycans (GAGs) including chondroitin -4- and -6- sulfates* GAGs make up the core of all connective tissue. Perna supports the health, comfort, flexibility and hydration of synovial fluid and connective tissues including joints, ligaments, tendons, cartilage and intervertebral discs.