Musseltone Extract is sourced from the New Zealand Green Lipped Mussel (Perna canalicus), which is found in the clear, unpolluted waters of New Zeal&, thus providing an extract of the highest quality. Each 500mg Musseltone tablet is guaranteed to provide 45mg of Mussel Lipids, which may help to maintain joint health & mobility. For even better results, use in conjunction with Optima’s soothing Musseltone Green Lipped Mussel Extract Gel