Nigella Sativa Oil INCI: Nigella Sativa Seed Oil Mode of Use: Take a teaspoon of this oil straight a couple times a day. It works great to add a teaspoon or so to an oil cleansing blend it can be added to lotions, shampoos and hair detox, and skin products with great results. Benefits the many ways that Nigella Sativa oil benefits the body, obesity, hair loss, skin disorders and infections like MRSA It is also used topically in some cultures to naturally soften, strengthen and firm skin and help increase hair growth.