Shark cartilage is prepared from the skeleton of freshly caught sharks.
A shark's skeleton is made of cartilage, not bone. The cartilage is cut from the shark, cleaned, and dried. It is finely ground, sterilized, and put into capsules. Cartilage is taken from the spiny dogfish shark, hammerhead shark, and some other types of sharks. They are not subject to the same scrutiny and regulations as prescription medicines.