In vivo and in vitro tests show that the antioxidant effect of grape seed extract is 30-50 times that of vitamin C and vitamin E. The super antioxidant efficiency has the powerful effect of scavenging free radicals and improving human immunity. Grape Seed Extract is rich in bioflavonoids and is a powerful essence molecule that fights free radicals (free radicals) and maintains the health of capillaries. (Free radicals are one of the important causes of aging and many diseases. It is estimated that about 80%-90% of aging and degenerative diseases are related to free radicals). Moreover, It is with the most competitive price compare to other similar antioxidant. Shaanxi Belen Biotechnology has been specializing in grape seed extract over 10 years with the most competitive price and quality.