The flowering plant Black Seed has been used for medicinal purposes for thousands of years. Its most common use is in the treatment of digestive tract conditions such as colic, dysentery, gas, diarrhea, hemorrhoids and constipation. The combination of anti-inflammatory and antioxidant properties provide relaxation to smooth muscles as well as relief of asthma symptoms. Black Seed oil has a ton of benefits for your hair. It curbs hair loss, conditions and softens the hair, stimulates growth, prevents graying and promotes blood circulation in the scalp.