Black seed oil is an extract of Nigella sativa seed. The seed comes from a flowering plant that is believed to have originated from the southwestern part of Asia. The seed oil has been used in its native, Middle East, and other parts of the world as a medicine for a long time. The black seed oil contains thymoquinone, which makes it helpful to the human body when taken in one way or the other. There are several ways that when black seed oil is used correctly, it benefits humans. Here are some of the benefits of using black seed oil: