Black Seed Oil or blackseed oil is an ancient medicinal oil, also known as Nigella Sativa Oil, Sativa Oil or Kalonji Seed oil. Used for centuries, it has been taken internally and used externally to support the body. Internally, it is supportive of the body?s functions and known for its powerful protective plant compounds, while externally, Black Seed oil helps tackle dry, itchy, and scaly skin conditions. It may be used on problem skin to help promote a clear complexion. Black seed oil for hair growth is a common use and may also be used as a natural chest rub.