North American Herb & Spice, Resvital, 500 mg, 90 CapProduct Description Resvital ? 90 capsules is a crude red sour grape powder devoid of chemical processing, the freshest grape extract available. This sun dried formula full of photonic energy, is full of resveratrol, malic acid, tartaric acid, vitamin C and the minerals chromium as well as potassium. Product Benefits The whole grape skin, seed, and sour pulp is used. Let slowly dissolve under the tongue for maximum potency or in your favorite