Shark liver oil is an oil obtained from the livers of sharks. It has been used for centuries as a folk remedy to promote the healing of wounds and as a remedy for respiratory tract and digestive syste
Sharks typically targeted for their liver oil include the school and gulper shark, and the basking shark (pictured). All three of these species are either endangered or critically endangered due to overfishing according to the IUCN, although a legal targeted fishery for basking sharks no longer exists.