Hairtail refers to a part of hairtail, which is located at the head of the fish. Hairtail is a widely distributed fish, especially in the western Pacific and Indian Ocean and coastal provinces of China.

Hairy fish head is considered to have the functions of invigorating spleen, benefiting qi, warming stomach, nourishing liver, caring skin, invigorating qi, nourishing blood and building body, and has no toxic effect on human body.