Grape seed has the most concentrated form of benefits from the grape. Its extracts have been shown to improve immunity & prevent cancer. The powerful free radical scavenging effects of the extract protect the skin from UV radiation damage, blood vessel walls from inflammatory stress & the brain from low oxygen states. Antioxidants in grape seed triggered the death of 76% of exposed leukemia cells. Grape seed extracts help the liver to detoxify from radiation induced poisons & chemotherapy.