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Review of resveratrol supplements tested by ConsumerLab.com, including ratings and comparisons of product quality, price, and ingredients.

Alphabetical list of resveratrol supplement brandsĀ compared in this review

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BulkSupplements.com Resveratrol

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Life Extension Optimized Resveratrol with Synergistic Grape-Berry Actives

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Longevinex

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M98 Resveratrol

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MRM Nutrition Resveratrol

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Progressive Professional Trans Resveratrol With Quercetin

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Pure Encapsulations Resveratrol VESIsorb

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Puritan's Pride Resveratrol 100 mg

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ResVitale Resveratrol 500 mg

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Solgar Resveratrol 500 mg

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Spring Valley Resveratrol 250 mg

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Toniiq Resveratrol

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Vitamin World Maximum Strength Resveratrol 500 mg

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Summary

  • Does resveratrol help? There is some preliminary evidence that resveratrol supplements may be helpful for age-related macular degeneration. Evidence for other popularly promoted uses, such as cardiovascular health and lowering cholesterol, improving insulin sensitivity in diabetes, improving memory, and "life-extension" is quite limited, and in some cases, contradictory (see What It Does).
  • Which form of resveratrol is best? Resveratrol is a plant chemical found in red grape skins and grape seeds, purple grape juice and red wine, but most resveratrol in supplements comes from the Japanese knotweed plant (Fallopia japonica or Polygonum cuspidatum). Resveratrol exists in either the cis- or trans- form, but trans-resveratrol is found most abundantly in nature and is the most-researched form (see What It Is).
  • How much resveratrol is actually in supplements? All of the products tested in this review were found to contain the amounts of resveratrol claimed on their labels, which ranged from about 106 to 618 mg per serving (see What CL Found.) This is an improvement over 2016 when CL found that a "resveratrol complex" in a product was 11.8% resveratrol.
  • Which resveratrol supplement is best? Among the resveratrol products that were Approved for their quality in our tests, the cost to obtain 100 mg of trans-resveratrol ranged from just 5 cents to $1.40. We selected two products that provided high-quality resveratrol at relatively low cost as our Top Picks.
  • What is the right dose of resveratrol? Although there is no established safe and effective dose for resveratrol, a typical dose of approximately 150 mg per day may have activity in people, although higher doses are also used (see ConsumerTips).
  • Is resveratrol safe? Resveratrol should not be taken by women with estrogen-sensitive conditions, nor by children, or women who are pregnant. People taking blood thinners are strongly advised to consult a physician before taking resveratrol because of potential drug interactions (see Concerns and Cautions) for more information.
You must be a member to get the full test results for resveratrol supplements along with ConsumerLab.com recommendations and quality ratings. In this review, you'll get test results and quality ratings for 10 resveratrol supplements selected for testing by ConsumerLab and three others that passed testing in our voluntary Quality Certification Program. In this comprehensive review, you'll discover:
  • The clinical evidence for, or against, using resveratrol for age-related macular degeneration, cardiovascular health, diabetes, memory and life extension
  • Which resveratrol supplements failed testing and which passed and, which are ConsumerLab.com's Top Picks
  • How the cis- and trans- forms of resveratrol differ and how much was found in supplements
  • What to look for on resveratrol supplement labels
  • Dosage for resveratrol, based on what clinical studies have shown
  • Potential side effects and drug interactions with resveratrol

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