Merit Black Cold Pressed Seed Oil also known as kalonji oil is used to beautify skin, nourish hair, and stimulate hair growth. For healthy hair, mix a little black seed oil with your henna powder, shampoo or directly to your hair as a conditioner. For beautiful healthy skin, apply Black Seed Oil to wet skin. Cover with a warm moist cloth and it with the warmth of the sun on your face for about 20 minutes. Wash this off. Repeat a couple times a week to help reduce wrinkles, fine lines, or just to keep your skin youthful. For thinning hair and hair loss, apply Black Seed Oil to clean scalp. Repeat this once a week. It comprises of approximately 21% protein, 38% carbohydrates, and 35% plant fats and oils. Black seed oil provides a rich supply of polyunsaturated fatty acids. These ingredients play a key role in daily health and wellness to. black oil has over 1400 years history of use.