trunature Grape Seed & Resveratrol contains a special combination of ingredients that may help provide heart health support and promote antioxidant health by fighting against the effects of free radicals. Antioxidant support Each serving provides Grape Seed Extract at 333 mg standardized to 90% polyphenols, 75 mg of Grape Skin Extract and 25 mg of Grape Juice Extract. Suggested Use: Adults – Take two (2) capsules daily with food, as a dietary supplement.