Oleum canis black cumin oil is extracted from the seeds of the black cumin plant a medicinal plant from egypt also known as nigella sativa it contains a high content of essential polyunsaturated fatty acids that can help to strengthen your dogs natural defences and immune system oleum canis black cumin oil contains natural essential oils which help to prevent parasite infestations and counteract allergies cold pressing is a gentle method which ensures that the high quality nutrients in t