Black seed is a plant.people have used the seed to make medicine for over 2000 years.black seed is used for treating digestive tract conditions including gas,allergies,flu,swine flu and congestion.some people apply black seed directly to the skin for joint pain,headache and certain skin conditions.in foods black seed is used s a flavoring or spice.we collect our product from those farmers who do not use chemical fertilizers and insecticide in their product .our product is good and toxin free,and we can guarantee 100% of this product quality.