Watch Delicious Living's Editor-in-Chief Radha Marcum with ReserveAge Organic founder Naomi Wittel

Fifty glasses of red wine. That’s about how much you’d have to drink to get an efficacious amount of resveratrol—the anti-aging antioxidant superstar found in grapes, peanuts, berries, and other plants that may help prevent cancer, stroke, and cardiovascular and Alzheimer’s diseases, along with protect skin from free radical damage. But these benefits aren’t floating in the glass of Merlot you had with dinner (the average glass of wine contains only about 2 mg resveratrol); that's why natural product companies are delivering the antioxidant in pill and liquid forms. Term to know when picking a product: trans-resveratrol, the active form of the polyphenol that most clinical studies have examined. Here’s a tasting of resveratrol supplements available at your natural products store.

Reserveage Organics Resveratrol 250

Located within 15 minutes of the organic French vineyards where it sources the grapes, this new European company offers 100, 250, or 500 mg resveratrol in its single-capsule supplements.

Now Foods Natural Resveratrol Concentrate

One tablespoon of this liquid concentrate packs 300 mg trans-resveratrol and 300 mg of a superfruit antioxidant blend, including mangosteen, pomegranate, and acai.

Genesis Today 4 Resveratrol

This liquid supplement blends seven resveratrol sources, including extracts of Japanese knotweed, red wine, grape skin, and grape seed to provide over 575 mg resveratrol.