In grapes and grape juice, the highest concentration of resveratrol can be found in red grapes—and subsequently in red wines (up to 1.89 mg/glass) more than in white (up to 0.27 mg/glass) or rosé wines (up to 0.53 mg/glass).25 The highest amounts of resveratrol are found in Pinot Noir grapes from Burgundy, France and the state of Oregon in the U.S., whereas the lowest amounts are found in grapes from warm and dry regions.7
Red grape juice can contain between 0.17 and 1.30 mg per 5-ounce glass as well.25 However, raisins are not a good source of resveratrol—even though they are dried grapes—because the drying process destroys the beneficial polyphenols.15
The total amount of resveratrol in any food source is highly variable even among the same species.25 For example, the amount of resveratrol in wine depends on type of grape, where it comes from, if the grape vine had any exposure to fungal infections, and how long the grapes are processed with the skin, stems, and seeds.7,25 Other foods that contain resveratrol are peanuts, peanut butter, pistachios, rhubarb, and berries such as cranberry, mulberry, bilberry, and blueberry.25
Resveratrol supplements are readily available on the web and in grocery, health food, retail chains, and drugstores and are usually derived from root extracts of the plant species Polygonum cuspidatum.25 Resveratrol’s antioxidant properties are now being put to good use as an ingredient in cosmetics which cosmetic companies are promoting for potential health benefits as they did with vitamin E.28 You can now find cosmetic, hair, anti-aging, skin, acne treatment, and personal care products such as lipsticks, skin lighteners, wrinkle creams, moisturizers, and even lip liners containing significant amounts of resveratrol in them.
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Components of plants that can influence physiological
and cellular activity in humans and animals.
Also known as Hu Zhang in Traditional Chinese Medicine (TCM) and
kojo-kon in Kampo, traditional Japanese medicine.