Shark Liver Oil is obtained from sharks caught for food purposes only, living in cold, deep oceans. The liver oil from sharks has been used by fishermen for centuries as a folk remedy for general debility, for healing wounds, sores, irritations of the respiratory tract and the alimentary canal and for lymph node swelling. Shark Liver Oil from Greenland is rich in alkylglycerols, which are naturally found in mother's milk and in bone marrow. Shark Liver Oil is also available from Alaska which is rich in Vitamins A and D and in essential Omega-3 fatty acids. Shark Liver Oil is a standardized and carefully controlled product, containing no toxic impurities.