10 Best Resveratrol Supplements of 2026

Resveratrol supplements: what to look for

The most important distinction is between total extract weight and actual trans-resveratrol. A label may call a serving “1,000 mg” or “1,500 mg” while that figure represents an extract, a blend, or a yield equivalent rather than 1,000 or 1,500 mg of trans-resveratrol. Some supplied products had independent testing that found far less resveratrol than their headline claims. A credible label states the serving size, daily dose, botanical source, extract standardization, and trans-resveratrol amount separately. A lot-specific HPLC or UPLC assay should distinguish trans-resveratrol from cis-resveratrol and test the finished product, not merely the raw ingredient.

Dose also needs context. Human studies in the supplied reviews included doses such as 200, 350, 600 and 1,000 mg, but a studied dose does not prove that a supplement produces a health benefit. Oral resveratrol is rapidly converted to metabolites, so a large capsule claim does not automatically mean high circulating unchanged resveratrol. Claims that micronization, quercetin, black pepper, or a liposomal format improves absorption should be treated cautiously unless supported by human pharmacokinetic evidence for that specific formulation.

For cleanliness, the strongest evidence is a recent, traceable certificate of analysis for the finished lot from a named ISO/IEC 17025-accredited laboratory. It should address heavy metals, microbes, pesticides, residual solvents, and relevant botanical-process contaminants such as PAHs, with methods and limits that can be checked. NSF/ANSI 173, USP Verified, or a current ConsumerLab retail-purchase review provides stronger independent reassurance than a brand’s statement that it is “third-party tested.” Facility-level GMP certification is useful, but it is not the same as certification of the product in the bottle. FDA does not preapprove or certify dietary supplements.

Buyers should also check protection from light and degradation: an intact seal, expiry date, cool-and-dry storage directions, suitable opaque or light-protective packaging, and ideally stability testing that measures potency and trans-to-cis conversion through shelf life. Avoid proprietary blends or combined “complexes” that conceal the amount of resveratrol. A full ingredient list should identify inactive ingredients and every active amount.

Recurring safety concerns are important. Resveratrol may increase bleeding concerns with anticoagulants, antiplatelet medicines, aspirin, or regular NSAID use, and several reviews also raise medication-metabolism questions. Seek clinician advice before use if taking prescription medicines, preparing for surgery, pregnant or nursing, managing a hormone-sensitive condition, receiving cancer care, or under medical supervision. Combination products can add further concerns, including high vitamin E, berberine, green tea, or other botanicals. Do not use these products as substitutes for treatment or as proven prevention.

Integrity

Full reviews

#1 - Best Overall

Natural Resveratrol Antioxidant Supplement 1000mg

Buyer Score 98/100Integrity Score 60/100aSquared Nutrition

Overview

This is a 180-capsule resveratrol supplement intended for adults, with a stated use of two capsules daily for 90 servings. A label record in the NIH Dietary Supplement Label Database lists 1,000 mg of resveratrol powder per serving from Polygonum cuspidatum, plus a methylcellulose capsule and rice flour. The label advises taking it with a meal and includes general medication and medical-condition cautions. The defining concern is identity and potency clarity. The public product page calls it 1,000 mg resveratrol, while a 2024 marketplace test report identified an aSquared product whose label described an 8% yield and characterized the front-panel 1,000 mg presentation as misleading. The brand says its products are third-party tested, but it does not publish a current lot-specific assay, contaminant panel, laboratory name, or stability report for this product. Human research does not establish it as a proven heart-health or longevity treatment.

What works

• The recorded label gives a specific serving size, daily directions, 90 servings, and a short inactive-ingredient list.
• The recorded label identifies Polygonum cuspidatum as the resveratrol source rather than using an unnamed proprietary blend.
• The capsule and stated ingredients are compatible with a vegan diet, according to the manufacturer.
• A daily amount of 1,000 mg is within the dose range generally reported as tolerated in short human studies of purified resveratrol.

What does not

• A public test report found a material mismatch between the prominent 1,000 mg presentation and an 8% potency-yield label description for an aSquared resveratrol product. This is a potency and labeling concern, not merely missing documentation.
• The label record does not state a standardized trans-resveratrol amount, cis-resveratrol amount, or finished-product assay result, so actual trans-resveratrol intake is unclear.
• The product provides only broad medication and medical-condition cautions. It does not specifically flag anticoagulants, antiplatelet drugs, NSAIDs, or possible high-dose drug-metabolism interactions.
• The brand claims third-party testing and GMP-compliant production, but no current independently verifiable certification, retail-purchased review, or lot-specific contaminant and stability results were found.
• Marketing about cardiovascular function, vitality, and longevity is more confident than the inconclusive human evidence supports.

Who is it for

This product is most relevant to an adult who specifically wants a simple capsule-format botanical resveratrol product, prefers a vegan formula, and understands that the stated two-capsule routine is a 90-day supply. It suits someone using it as an optional supplement rather than as treatment for cardiovascular disease, diabetes, cognitive decline, joint disease, or aging. That user should be comfortable with the unresolved question of how much trans-resveratrol is actually delivered and should check the physical bottle label before use.

Who is it not for

It is not suited to people taking warfarin, direct oral anticoagulants, antiplatelet medicines, regular NSAIDs, or prescription medicines with interaction concerns unless their clinician or pharmacist has reviewed it. Resveratrol at about 1 g daily may affect drug metabolism and could add to bleeding risk. Pregnant or nursing people, children, people preparing for surgery, and people with a hormone-sensitive condition should not rely on the broad label disclaimer alone. It is also unsuitable for buyers who require a verified trans-resveratrol assay or lot-specific contaminant results.

Integrity

Human trials suggest that oral resveratrol can be tolerated at doses up to about 1 g daily in the short term, but comprehensive clinical reviews do not support recommending it as established care for any health condition. Oral resveratrol is extensively metabolized, and high supplemental doses may interact with medicines through CYP enzymes and transport pathways. The product label gives general advice to consult a clinician for medications or medical conditions, but it does not provide the more specific bleeding and interaction cautions that are useful at this dose. The manufacturer describes the product as vegan, non-GMO, made in the USA, GMP compliant, and third-party tested. Those are manufacturer statements, not current product-level certifications verified in an independent registry. No lot-specific laboratory report was found for heavy metals, microbes, pesticide residues, residual solvents, potency, or shelf-life stability. No substantiated information was found about botanical origin, extraction, packaging material, recycled content, or other environmental sourcing practices.

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#2 - Hot Deal

Nutricost Resveratrol 700mg 120 Vegan Capsules

Buyer Score 95/100Integrity Score 68/100Nutricost

Overview

This is a bottle of 120 vegan capsules, labeled for adults to take two daily with water. The Supplement Facts information independently reproduced by a retailer lists 700 mg of Japanese knotweed root extract per serving, standardized to 50% trans-resveratrol. That equates to a labeled target of 350 mg trans-resveratrol daily, with 60 servings per bottle. Hypromellose capsule, magnesium stearate, and silica are the listed inactive ingredients. The formula is not a proven longevity or disease-prevention treatment. Human research has explored resveratrol widely, but systematic clinical-trial review finds no conclusive basis to recommend it for a healthcare condition. The dose is within the 100 to 500 mg range examined in human absorption research, although oral resveratrol is rapidly converted to metabolites. Nutricost states that the product is third-party tested, but no current lot-specific potency, contaminant, or stability report was publicly available for this product.

What works

• The label identifies the botanical source, serving size, extract amount, and 50% trans-resveratrol standardization.
• Its labeled daily target, 350 mg trans-resveratrol, is within a dose range studied in human oral pharmacokinetic research.
• The official NSF registry confirms that Nutricost Manufacturing holds NSF/ANSI 455-2 GMP facility certification.
• The listed vegan capsule and simple excipient list avoid gelatin and disclose the added ingredients.

What does not

• The product page contains conflicting copy, claiming both 700 mg per two-capsule serving and 700 mg per capsule. The Supplement Facts support 700 mg per serving, not per capsule.
• A 50% standardization implies 350 mg trans-resveratrol daily, rather than 700 mg of the more studied trans form. No finished-product assay was available to independently confirm that amount.
• The warning is a general consult-a-professional statement. It does not specifically flag blood-thinning medicines, NSAIDs, hormone-sensitive conditions, pregnancy, or nursing.
• The brand's third-party testing statement is not supported by a public, lot-specific certificate covering potency, heavy metals, microbes, pesticides, residual solvents, and stability.
• No current independent certification or retail-purchased laboratory result was located for this specific product.

Who is it for

This product fits an informed adult who specifically wants a simple Japanese knotweed resveratrol extract, prefers vegan capsules, and understands that the label supplies 700 mg of extract rather than 700 mg of trans-resveratrol. The 120-capsule bottle is sized for about 60 days at the labeled two-capsule routine. It is most suitable for someone using resveratrol as an optional supplement rather than relying on it to manage cholesterol, diabetes, cognition, cardiovascular risk, menopause symptoms, or longevity.

Who is it not for

It is not appropriate for people who need a supplement with publicly available lot-specific assay results or independent finished-product certification. People using anticoagulants, antiplatelet drugs, or regular NSAIDs should seek clinician advice before use because resveratrol may affect bleeding risk. Avoid self-directed use during pregnancy or nursing, in children, and when managing a hormone-sensitive condition or other medical condition. It also does not suit anyone expecting proven anti-aging, metabolic, cardiovascular, or cognitive treatment effects.

Integrity

The useful quality finding is facility-level rather than product-level. Nutricost Manufacturing is listed by NSF as certified to NSF/ANSI 455-2 GMP, which covers manufacturing quality systems. That is meaningful process oversight, but it does not mean this individual resveratrol product is NSF contents certified or independently tested on an ongoing basis. The manufacturer states that it uses independent laboratory testing, yet a recent, lot-specific report showing trans-resveratrol potency, cis-resveratrol, residual solvents, microbes, pesticides, and contaminants was not publicly available. The label identifies Japanese knotweed root as the source and uses a vegetarian hypromellose capsule. It directs storage in a cool, dry place, and the bottle format offers some light protection, but no stability study demonstrating trans-resveratrol potency through expiry was located. No relevant FDA recall or warning letter for this identifiable product was found in the checked FDA databases. No organic certification, source-country disclosure, extraction-process documentation, recycled-content claim, or packaging recyclability evidence was found.

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#3

aSquared Nutrition Natural Resveratrol Antioxidant Supplement

Buyer Score 93/100Integrity Score 51/100aSquared Nutrition

Overview

This is a 180-capsule resveratrol supplement intended for adults, with a labeled serving of two capsules daily and 90 servings per bottle. The manufacturer currently describes a 1,000 mg resveratrol and polyphenol blend containing Polygonum cuspidatum, red-wine polyphenol extract, green-tea extract, and BioPerine. Individual amounts of those blend components are not disclosed. Its defining quality issue is potency. A 2024 retail-purchase investigation tested a listed lot by HPLC in both NOW's laboratory and Alkemist Labs, finding 43 and 44 mg resveratrol per capsule. The report listed the label as 500 mg per capsule with 8 percent yield, and judged the labeling not honest. That finding means the tested product delivered about 88 mg per two-capsule serving, not 1,000 mg of trans-resveratrol. Human research does not establish resveratrol as a proven treatment for heart, immune, brain, energy, or longevity outcomes.

What works

• The bottle supplies 90 labeled daily servings, using two capsules per day.
• The label includes basic directions, a safety seal instruction, cool and dry storage advice, and warnings for pregnancy, nursing, children, medications, and medical conditions.
• The manufacturer states that the capsules are vegan, non-GMO, preservative-free, and made with vegetable capsule materials.
• The independently tested lot did contain measurable resveratrol, and the investigation's botanical screen was consistent with Japanese knotweed material.

What does not

• A 2024 dual-laboratory HPLC investigation found only 43 to 44 mg resveratrol per capsule in the tested lot, about 9 percent of the report's listed 500 mg-per-capsule claim.
• The product presents a 1,000 mg blend as its headline strength while not disclosing the separate amounts of trans-resveratrol, green tea, or red-wine extract.
• Manufacturer claims about AMPK activation, NAD+, mitochondrial health, energy, and longevity go beyond conclusive human outcome evidence for this formulation and dose.
• The warning is broad rather than specific about bleeding risk with anticoagulants, antiplatelet drugs, or NSAIDs, and it does not specifically address hormone-sensitive conditions.
• The manufacturer claims third-party testing in an ISO 17025 facility, but does not name the laboratory or publish a current lot-specific certificate of analysis for potency or contaminants.

Who is it for

This product is most relevant to an adult who specifically wants a plant-derived resveratrol blend in vegetable capsules, understands that the prominent 1,000 mg figure is a blend claim rather than a verified trans-resveratrol dose, and is comfortable reviewing the bottle label carefully. The 180-capsule format suits someone planning a 90-day routine at the labeled two-capsule daily use. It is not a clinically established option for treating cardiovascular, immune, cognitive, metabolic, or longevity concerns.

Who is it not for

It is not appropriate for children, people who are pregnant, nursing, or trying to conceive, or anyone who has been advised not to use resveratrol. People taking warfarin, aspirin, clopidogrel, other antiplatelet or anticoagulant medicines, regular NSAIDs, or multiple prescription medicines should seek pharmacist or clinician guidance first because resveratrol can affect bleeding risk and drug metabolism. It also does not suit buyers who need a clearly quantified, independently verified trans-resveratrol dose or published contaminant results.

Integrity

The label carries general safeguards, including directions to avoid use during pregnancy or nursing, avoid use by people under 18, and consult a clinician for medications or medical conditions. Those warnings are useful, but they do not specifically identify the blood-thinning and drug-metabolism concerns relevant to resveratrol. Human trials generally report tolerability at modest doses, though digestive effects can occur, and clinical benefit remains unsettled. The manufacturer states that the product is vegan, non-GMO, preservative-free, made in the USA, recyclable, GMP certified, and third-party tested in an ISO 17025 facility. These are manufacturer statements, not traceable finished-product certification or lot-specific test evidence. No named laboratory report was published for heavy metals, microbes, pesticides, residual solvents, or stability. The company also does not provide source-country, extraction-process, or packaging-material details needed to substantiate responsible botanical sourcing or a reduced environmental footprint.

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#4

NutraMedix Resveratrol Antioxidant Supplement

Buyer Score 88/100Integrity Score 71/100NutraMedix

Overview

This is a 60-capsule resveratrol supplement intended for adults. The manufacturer directs users to take one vegetable capsule daily after a meal. Each capsule is labeled with 200 mg of trans-resveratrol from Japanese knotweed root plus 25 mg of red wine fruit extract standardized to 30% polyphenols. The label also identifies microcrystalline cellulose, a vegetable capsule, vegetable magnesium stearate, and silicon dioxide. The concrete strength is that the stated active is trans-resveratrol, rather than an unspecified knotweed extract, and the one-capsule daily dose is clear. The manufacturer states that raw materials and finished capsules receive identity, microbial, heavy-metal, and potency testing. However, no current lot-specific certificate of analysis or retail-purchased independent verification was located for this particular product. Human research supports neither a settled treatment use nor proven healthy-aging outcome at this 200 mg dose.

What works

• The active amount is specific, 200 mg of trans-resveratrol per capsule, not merely a botanical extract total.
• A one-capsule serving and 60 servings per bottle make the daily intake straightforward.
• The manufacturer discloses both the red wine extract amount and its 30% polyphenol standardization.
• The manufacturer provides material-specific cautions about anticoagulants, antiplatelets, CYP-metabolized medicines, pregnancy, nursing, and young children.
• The stated formula is vegan and free of gluten, dairy, and soy.

What does not

• Broad immune, cardiovascular, metabolic, and healthy-aging promotion exceeds what current human evidence can establish for this exact product and dose.
• No current lot-specific laboratory report was available to confirm trans-resveratrol potency, cis-resveratrol level, heavy metals, microbes, pesticides, residual solvents, or PAHs.
• No current NSF, USP, Informed Sport, Informed Choice, or ConsumerLab finished-product verification was located for this product.
• The consumer package image gives pregnancy and nursing advice, but its visible caution text does not include the more specific blood-thinner and medication cautions found in the manufacturer’s professional sheet.
• The manufacturer claims its red wine polyphenols may improve bioavailability, but no product-specific human pharmacokinetic study was located.

Who is it for

This product fits an adult who specifically wants a modest, clearly labeled 200 mg daily trans-resveratrol intake in a capsule, rather than an unspecified red wine or knotweed blend. It is most suitable for someone using it as an optional antioxidant supplement, understands that human outcome evidence is unsettled, and can review medications with a clinician or pharmacist. The 60-capsule bottle suits a roughly two-month trial when taken as directed. It also fits people seeking a vegan formula without gluten, dairy, or soy.

Who is it not for

It is not appropriate for pregnancy or nursing, and it should not be used for children because safety data are insufficient. People taking warfarin, direct oral anticoagulants, aspirin, clopidogrel, frequent NSAIDs, or medicines with clinically important CYP metabolism should consult their prescriber before use. Those with estrogen-sensitive cancers or other hormone-sensitive conditions should seek medical guidance because resveratrol has estrogen-like activity in some experimental settings. It is also not a substitute for treatment of cardiovascular disease, diabetes, immune disorders, or age-related conditions.

Integrity

The product identifies the relevant active form as trans-resveratrol from Japanese knotweed root, alongside a small standardized red wine extract. The manufacturer states that it follows cGMP practices and tests raw materials and finished capsules for identity, microbes, heavy metals, and potency where applicable. Those are useful quality-control commitments, but they are manufacturer statements. No recent lot-specific results from an identified accredited laboratory were provided, and no independent finished-product certification or retail-purchased testing record was located. The manufacturer provides a U.S. business address and states that the capsules are manufactured in America. Searches did not identify a product-specific FDA recall, FDA warning letter, or FTC enforcement action. The brand does not provide enough public sourcing detail to establish the Japanese knotweed origin, extraction process, pesticide controls, packaging resin, recycled content, recyclability, or environmental certification. Its environmental footprint therefore remains largely unsubstantiated.

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#5

Luma Nutrition High Purity Resveratrol Supplement

Buyer Score 86/100Integrity Score 71/100Luma Nutrition

Overview

This is a 60-capsule, 30-day resveratrol supplement for adults. The labeled serving is two capsules daily with food, providing 600 mg of Polygonum cuspidatum, Japanese knotweed, root extract standardized to 98% trans-resveratrol. The complete visible formula lists rice flour and hypromellose as the only other ingredients. These are manufacturer-stated label details, not independent potency verification. The 600 mg daily amount is within the range used in completed human research, but resveratrol trials have not established a consensus treatment regimen or conclusive clinical benefit for longevity, brain health, or general cardiovascular health. The manufacturer says each batch is third-party tested and made in a U.S. GMP facility, but no current product-specific certificate, named laboratory result, NSF listing, USP listing, or retail-purchased independent result was located for this product.

What works

• The label clearly specifies a two-capsule serving, 600 mg root extract, and 98% trans-resveratrol standardization.
• The 600 mg daily amount has been used in a completed human dose-response study, so it is not an implausible mega-dose.
• The formula is short and identifies both non-active ingredients, rice flour and hypromellose.
• The manufacturer provides a specific caution to consult a clinician or pharmacist before use with blood-thinning medicines.

What does not

• Human research does not support proven longevity, brain-health, or broad cardiovascular outcomes at this dose, despite the product's healthy-aging marketing.
• The public caution does not specifically address antiplatelet drugs, NSAIDs, hormone-sensitive conditions, or planned procedures.
• The third-party testing claim is unproven for this finished product because no lot-specific certificate or named accredited laboratory report was publicly available.
• No public finished-product stability report was found to show that trans-resveratrol potency is retained through expiry.
• The manufacturer’s projected timelines for energy, wellness, and longer-term cardiovascular support go beyond what current human evidence can reliably promise.

Who is it for

This product is most relevant to an adult who specifically wants a plainly labeled, single-ingredient-style resveratrol routine rather than a multi-ingredient longevity blend. It suits someone comfortable taking two capsules daily with a meal and who values a disclosed botanical source and stated trans-resveratrol standardization. The dose is in a range studied in human trials, but the use case should be general supplement experimentation, not treatment of blood pressure, cognitive decline, diabetes, inflammation, or another diagnosed condition.

Who is it not for

It is not suitable for people who are pregnant or nursing, children, or anyone with a medical condition unless their clinician approves it. People using warfarin, other anticoagulants, antiplatelet drugs, or frequent NSAIDs should seek pharmacist or prescriber guidance because resveratrol may affect bleeding risk or drug metabolism. Those with hormone-sensitive conditions should also obtain clinical advice because resveratrol has phytoestrogen-related activity. It is not a substitute for prescribed treatment or monitoring of cardiovascular, metabolic, cognitive, or inflammatory disease.

Integrity

The positive health-quality points are the visible Supplement Facts panel, a defined botanical source, and a stated 98% trans-resveratrol standardization. Trans-resveratrol is the better-characterized naturally occurring isomer, and the 600 mg daily amount is within human-study dosing ranges. However, absorption is limited by rapid metabolism, and broad health outcomes remain inconsistent or inconclusive in human research. The manufacturer gives a blood-thinner caution and the label advises pregnant or nursing people and people with medical conditions to consult a clinician. Luma states that the product is made in the United States with global ingredients, in an FDA-registered GMP facility, and is batch tested by an independent laboratory. Those statements were not supported by a public lot-specific certificate, a named laboratory report, or recognized finished-product certification. No organic certification record, source-country disclosure, extraction-process documentation, packaging-material specification, or stability report was located. No relevant unresolved FDA recall or warning letter was found in the reviewed searches.

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#6

Garden of Life Heart Resveratrol Supplement

Buyer Score 85/100Integrity Score 74/100Garden of Life

Overview

This is a 60-capsule, once-daily resveratrol supplement for adults. Each capsule is labeled to provide 350 mg of trans-resveratrol within a 578 mg blend of grape juice and fermented Japanese knotweed root. It also contains a 25 mg organic fruit and vegetable blend, plus a 16 mg enzyme and probiotic blend labeled with 500 million CFU. The capsule is vegetable cellulose, with organic rice hull as the other listed ingredient. Garden of Life states that the product supports antioxidant activity, heart health, healthy aging, and digestion. Human research supports some modest cardiometabolic effects of resveratrol in particular populations, but does not establish it as a proven treatment or longevity intervention. The label gives a specific trans-resveratrol amount, which is more useful than listing only a botanical extract, but no current lot-specific independent potency, contaminant, or stability report was located.

What works

• The label identifies a concrete daily intake of 350 mg trans-resveratrol, not only a total plant-blend weight.
• One capsule provides a 60-day supply, which makes the intended daily use simple.
• The safety panel specifically calls out blood thinners, estrogen-sensitive conditions, surgery, pregnancy, nursing, medication use, and medical supervision.
• The formula uses a vegan capsule and lists its inactive ingredients.
• The product is labeled as Non-GMO Project Verified by major retailers, although an issuer registry listing for this exact product was not located in this review.

What does not

• The evidence does not support treating heart disease, slowing aging, or producing a proven longevity outcome with this dose.
• Garden of Life's broad statements about circulatory, respiratory, reproductive, digestive, and red-wine-like benefits go beyond what is firmly established in human trials.
• The probiotic and enzyme ingredients are grouped in a 16 mg blend, so individual enzyme amounts and strain-specific probiotic amounts are not disclosed.
• No recent lot-specific certificate of analysis from an identified accredited laboratory was found for trans-resveratrol potency, heavy metals, microbes, pesticides, or solvents.
• No public independent certification or retail-purchased laboratory result was located for this exact finished product.

Who is it for

This fits an adult who specifically wants a moderate, clearly labeled 350 mg daily trans-resveratrol dose in a one-capsule format. It may suit someone using a supplement as an adjunct to, not a replacement for, established diet, exercise, and clinician-directed cardiovascular care. The formula may also appeal to people who prefer a vegan capsule and value the label's disclosed botanical source, fermented Japanese knotweed with grape juice. A buyer should be comfortable with benefits that remain modest and condition-dependent rather than proven for healthy aging.

Who is it not for

It is not appropriate for children, or for people who are pregnant, planning pregnancy, or nursing unless a clinician specifically approves it. People taking anticoagulants, antiplatelet medicines, regular NSAIDs, or other prescription medicines should review it with a pharmacist or clinician because resveratrol may affect bleeding risk and drug metabolism. Those with estrogen-sensitive conditions should seek medical advice first, as the product label itself flags this group. It also does not suit buyers who need independently published lot testing for purity and potency.

Integrity

The strongest product-specific safety feature is its unusually usable caution statement. It directs people who use blood thinners or regular medicines, anticipate surgery, have an estrogen-sensitive condition, are pregnant or nursing, or are under medical care to consult a healthcare professional. That is important because resveratrol has plausible interaction potential, even though serious adverse effects are uncommon in many trials at moderate doses. The formula lists organic fruits and vegetables and is reported by retailers as Non-GMO Project Verified, vegan, and kosher. These are meaningful dietary and sourcing attributes, but they do not substitute for a finished-product contaminant panel. No lot-specific public report was found for elemental impurities, microbial testing, pesticides, residual solvents, or cis and trans-resveratrol stability. An FDA recall announced in 2017 involved a separate infant liquid product and was terminated, with FDA stating that no other Garden of Life products were affected.

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#7

Purify Life Resveratrol Gummies 1500mg

Buyer Score 83/100Integrity Score 58/100Purify Life

Overview

This product is a 60-gummy, sugar-free resveratrol supplement marketed for adults who prefer chewables to capsules or powders. The brand promotes a 1,500 mg serving from Polygonum cuspidatum, also called Japanese knotweed, and positions the gummies for antioxidant, digestive, immune, cellular, cognitive, and healthy-aging support. The defining issue is dose presentation. In 2024, a retail-purchased bottle was tested by NOW and Alkemist Labs using HPLC. Both found about 5 to 6 mg of resveratrol per gummy, while the front-panel 1,500 mg statement was judged deceptive because the Supplement Facts panel indicated 10 mg of 150:1 extract per serving. The test supports that the tested lot contained resveratrol near its smaller label amount, not that it supplied 1,500 mg of resveratrol.

What works

• A retail-purchased 2024 lot was independently analyzed by two laboratories, which detected about 5 to 6 mg of resveratrol per gummy.
• The tested lot's measured resveratrol was close to the smaller 5 mg per-gummy label claim reported in the laboratory review.
• Chewable, sugar-free delivery may be easier for adults who cannot comfortably use capsules, though the sugar-free status is manufacturer-stated.
• The brand identifies Polygonum cuspidatum as the intended resveratrol source.

What does not

• The 1,500 mg front-panel marketing conflicts with the much smaller extract amount described in Supplement Facts and with independent testing. This is a confirmed labeling problem, not merely missing evidence.
• The product does not clearly state a finished-product trans-resveratrol dose or separate trans-resveratrol from cis-resveratrol.
• Human evidence does not establish digestive, immune, cognitive, cell-repair, anti-aging, or longevity benefits at the roughly 10 to 12 mg per-serving amount indicated by the tested gummies.
• No public, current lot-specific certificate of analysis was located for heavy metals, microbes, pesticides, residual solvents, or potency through expiry.
• The available product information does not provide the specific anticoagulant, antiplatelet, NSAID, hormone-sensitive-condition, pregnancy, or nursing cautions that resveratrol users need.

Who is it for

This product fits an adult who specifically wants a sugar-free chewable format and understands that the independently tested amount is roughly 5 to 6 mg of resveratrol per gummy, rather than the prominently marketed 1,500 mg figure. It is most relevant for someone using it as a small, nontherapeutic addition to a wellness routine, not as a substitute for medical care or a reliably dosed trans-resveratrol intervention. A buyer should be comfortable with the unresolved lack of public lot-specific contaminant and stability documentation.

Who is it not for

It is not appropriate for anyone seeking a clearly stated, clinically studied trans-resveratrol dose for cognition, immune health, digestion, heart health, longevity, or cell repair. People using warfarin or other anticoagulants, antiplatelet medicines, or frequent NSAIDs should seek clinician guidance because resveratrol may add to bleeding risk. It also does not suit pregnancy or nursing, people with hormone-sensitive conditions, children, households needing robust contaminant documentation, or buyers who need an independently certified finished product.

Integrity

The product's strongest quality evidence is narrow but concrete. A 2024 retail-purchase investigation used HPLC testing by NOW and Alkemist Labs and found detectable resveratrol at roughly 5 to 6 mg per gummy. That is useful confirmation for the tested lot, but it did not verify the claimed Japanese-knotweed botanical identity. The same investigation identified the 1,500 mg front-panel presentation as deceptive because the detailed label described a much smaller extract amount. The manufacturer says its gummies are made in a GMP-certified, FDA-registered facility and tested in ISO-certified United States laboratories. Those are manufacturer statements, not public finished-product certificates or certification-registry listings for this product. The product page also carries a California Proposition 65 notice, without publishing the relevant exposure measurement. The brand says its material is globally sourced, but provides no country-specific sourcing, extraction, packaging-material, recyclability, or sustainability documentation for this product.

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#8

UNcena NAD Supplement 1500mg Liposomal NAD+ Nicotinamide Riboside

Buyer Score 80/100Integrity Score 68/100UNcena

Overview

This is a 120-capsule NAD-focused supplement intended for adults. The displayed label directs two vegetarian capsules daily, with or without food, making the bottle a stated 60-day supply. Its Supplement Facts panel declares 1,200 mg nicotinamide riboside and 300 mg trans-resveratrol per daily serving, plus vegetable capsule, rice flour, microcrystalline cellulose, magnesium stearate and silicon dioxide. The named trans-resveratrol amount is more useful than an undisclosed plant-extract total, but the amount has not been independently verified in the finished product. The bottle is opaque, which is sensible for light-sensitive trans-resveratrol, though no lot-specific stability results, expiry evidence, or storage validation were located. Marketing also claims 10x liposomal absorption, but the available label does not identify a liposomal carrier or provide product-specific human pharmacokinetic data.

What works

• The displayed Supplement Facts panel separately names trans-resveratrol at 300 mg per daily serving, rather than only naming a botanical extract.
• The label provides serving size, daily direction, active amounts and a full list of listed inactive ingredients.
• Two capsules daily and 120 capsules give a simple manufacturer-stated 60-day routine.
• The opaque bottle is a reasonable packaging choice for a light-sensitive ingredient, although shelf-life potency was not independently documented.

What does not

• No current lot-specific certificate of analysis was found for potency, heavy metals, microbes, pesticides, residual solvents, or process contaminants.
• No NSF, USP, ConsumerLab certification listing, or other independent finished-product verification was located.
• The displayed product information does not give specific cautions for anticoagulants, antiplatelet drugs, NSAIDs, hormone-sensitive conditions, pregnancy, nursing, or medical supervision.
• The 10x liposomal absorption statement is unproven for this product, and the available ingredient list does not explain a liposomal delivery system.
• Broad anti-aging, focus, fatigue, immune, skin, and metabolic claims exceed what current human resveratrol evidence can establish for this exact product.

Who is it for

This product fits an adult who has already discussed supplement use with a clinician and wants a capsule formula whose displayed label clearly states 300 mg of trans-resveratrol plus 1,200 mg nicotinamide riboside per two-capsule serving. It may be practical for someone seeking a two-month routine, vegetarian capsules, and avoidance of listed soy and gluten. It is better suited to buyers treating it as an unverified general wellness product, not as a proven treatment for fatigue, cognitive performance, metabolic health, immunity, or aging.

Who is it not for

It is not appropriate for people who need independently certified identity, contaminant, or potency testing, including competitive athletes, highly risk-averse households, and those managing complex medication regimens. People using anticoagulants, antiplatelet medicines, or frequent NSAIDs should seek clinician or pharmacist guidance because resveratrol may affect bleeding risk. Those who are pregnant, nursing, under medical care, or have hormone-sensitive conditions should not rely on the generic label presentation as adequate safety guidance. It is also unsuitable for anyone expecting proven anti-aging, DNA-repair, focus, immune, or disease-management effects.

Integrity

The displayed label identifies 300 mg of trans-resveratrol, the isomer most commonly studied in humans, and gives a complete listed inactive-ingredient panel. Human studies support that orally consumed resveratrol is absorbed but rapidly metabolized, while systematic reviews do not establish a reliable anti-aging or broad wellness outcome for this exact formula. The label carries the standard statement that its claims have not been evaluated by FDA. Claims of GMP production, non-GMO status, vegan capsules, gluten-free status, and soy-free status appear in product marketing, but no issuing-body certificate or independent registry listing was located for this product. No lot-specific laboratory report was found to confirm contaminants or shelf-life potency. Searches did not locate a product-specific FDA recall, warning letter, or enforcement action as of August 16, 2026. No traceable botanical source, country-of-origin detail, extraction process, packaging-material specification, or substantiated environmental certification was found.

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#9

aSquared Nutrition Nicotinamide with Resveratrol Supplement

Buyer Score 79/100Integrity Score 58/100aSquared Nutrition

Overview

This is a 120-capsule, once-daily combination supplement. The manufacturer states that each vegetable capsule provides 500 mg nicotinamide, the flush-free form of vitamin B3, plus 100 mg resveratrol. It is marketed for NAD support, cellular health, energy, skin, brain, immune function, and longevity. The most important issue is dose identity. Independent retailer copies of package information list 100 mg resveratrol powder at 7% potency yield, which would equal about 7 mg resveratrol if that notation is accurate. That conflicts with the manufacturer’s current statement of 100 mg resveratrol per capsule. Neither source identifies trans-resveratrol or provides a finished-product assay. The manufacturer also states that the formula is third-party tested in an ISO 17025 facility, but it does not publish a traceable laboratory report or lot-specific results.

What works

• The manufacturer clearly states 500 mg nicotinamide per capsule and a one-capsule daily use pattern.
• A 120-capsule bottle is intended to provide about four months of use at the stated serving size.
• The manufacturer states that the capsule is vegan, non-GMO, and gluten-free.
• Nicotinamide is a flush-free form of vitamin B3, unlike niacin, which commonly causes flushing.

What does not

• The stated resveratrol dose is contradictory. The manufacturer says 100 mg resveratrol, while package information reproduced by retailers says 100 mg powder with 7% potency yield.
• The product does not identify trans-resveratrol content, botanical source, extract standardization, or cis-resveratrol content.
• No recent lot-specific certificate of analysis was found for potency, heavy metals, microbes, pesticides, residual solvents, or stability through expiry.
• Longevity, DNA repair, brain, immune, and sirtuin-related marketing goes beyond what current human resveratrol evidence can establish for this unclear and likely low dose.

Who is it for

This format may suit an adult who specifically wants a simple, one-capsule daily nicotinamide product, values the manufacturer-stated vegan and gluten-free formulation, and accepts that the resveratrol component is not independently characterized. The 120-capsule format is practical for someone planning steady use over roughly four months. It is more defensible as a nicotinamide-led supplement than as a clearly dosed trans-resveratrol product, because the vitamin B3 amount is plainly stated while the resveratrol amount is not resolved.

Who is it not for

It is not well suited to people seeking a verified amount of trans-resveratrol, a clinically interpretable resveratrol dose, or documented contaminant testing. People using warfarin, antiplatelet medicines, regular NSAIDs, or other medicines should consult a clinician or pharmacist before using concentrated resveratrol products because of possible interaction and bleeding concerns. Pregnant or nursing people, people with hormone-sensitive conditions, and anyone under medical care should avoid self-directed use unless their clinician approves it. It is also unsuitable for treating fatigue, cardiovascular disease, cognitive decline, diabetes, or aging-related conditions.

Integrity

Human trials of purified resveratrol suggest possible effects on selected metabolic and vascular markers in particular groups, but clinical reviews do not support using it as an established treatment for longevity, cognitive health, DNA repair, or general disease prevention. Oral resveratrol is extensively metabolized, and this product does not disclose a delivery technology intended to address its low systemic availability. The unclear resveratrol specification makes its practical relevance even harder to judge. The manufacturer states that the product is made in the United States, vegan, non-GMO, gluten-free, GMP certified, and third-party tested in an ISO 17025 facility. However, no issuing certification record, named laboratory, current lot certificate, or finished-product contaminant report was located. No substantiated information was found on the resveratrol source, country of origin, extraction process, bottle resin, recycled content, or recyclable packaging instructions. No product-specific active recall or warning letter was located in the reviewed FDA records.

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#10

Toniiq Ultra High Purity Resveratrol Supplement

Buyer Score 77/100Integrity Score 76/100Toniiq

Overview

This is a 60-capsule, 30-day resveratrol supplement for adults. The labeled daily use is two vegetarian capsules, supplying 600 mg of Polygonum cuspidatum root extract standardized to 98% trans-resveratrol. The inactive ingredients are disclosed as a vegetable capsule, microcrystalline cellulose, silicon dioxide, and vegetable magnesium stearate. The defining quality fact is independently confirmed, Toniiq Resveratrol appears in NSF International's dietary-supplement certification directory at a two-capsule serving. NSF certification involves label and formulation review, contaminant assessment, facility oversight, and ongoing testing. The health case is much less certain. Human trials have used resveratrol at comparable doses, but systematic clinical reviews do not support a proven treatment, longevity, or disease-prevention role. The listing's claim of high bioavailability is not backed by a product-specific absorption study.

What works

• NSF International lists this product as a certified dietary supplement, an independent finished-product quality control.
• The label clearly identifies a two-capsule daily serving, 600 mg dose, botanical source, and 98% trans-resveratrol standardization.
• NSF certification supports label accuracy and screening for unacceptable contaminant levels, including relevant heavy metals, pesticides, and adulterants.
• The formula has no proprietary blend, and its four inactive ingredients are named.
• The label includes pregnancy and nursing exclusions, sealed-package instructions, and cool, dry storage guidance.

What does not

• Resveratrol has no conclusive clinical evidence supporting routine use for longevity, cardiovascular protection, cognition, or disease treatment.
• The plain capsule is described as highly bioavailable, but no product-specific human pharmacokinetic study substantiates that claim. Oral resveratrol is rapidly metabolized.
• The safety wording is broad. It does not specifically flag anticoagulants, antiplatelet drugs, NSAIDs, hormone-sensitive conditions, or planned surgery.
• No public lot-specific certificate of analysis or shelf-life stability report was located, despite the strong NSF certification.
• No substantiated environmental sourcing, extraction, country-of-origin, recycled-content, or packaging-recyclability documentation was located.

Who is it for

This product suits an informed adult who specifically wants a plainly labeled, higher-dose trans-resveratrol capsule for personal wellness experimentation, rather than treatment of a medical condition. It is particularly relevant for someone who values independently verified label accuracy and contaminant controls, since the finished product is listed in NSF's certification directory. A two-capsule daily routine and 30-day bottle are practical for a person able to monitor tolerance and discuss supplement use with a clinician when medicines or chronic conditions are involved.

Who is it not for

It is not appropriate for children, pregnancy, or nursing, consistent with the product warning. People using anticoagulants, antiplatelet medicines, frequent NSAIDs, or preparing for surgery should not rely on the label's general consultation statement and should obtain clinician guidance first. Those with hormone-sensitive conditions or active cancer care should also seek specialist input. It is not a substitute for prescribed treatment for diabetes, cardiovascular disease, memory problems, inflammatory disorders, or age-related conditions, because meaningful clinical benefits remain unproven.

Integrity

The major health-quality highlight is real independent certification. NSF International currently lists Toniiq Resveratrol as a certified finished dietary supplement with a two-capsule serving. NSF describes this program as reviewing label claims and formulation, testing for declared contents and unacceptable contaminants, and conducting continuing oversight. A prior ConsumerLab market review also included Toniiq Resveratrol among products it purchased for independent category testing, although public access does not reveal this product's detailed result. The label identifies Japanese knotweed root extract and directs users to keep the bottle tightly closed in a cool, dry place. That is sensible handling for a light-sensitive polyphenol, but no public lot-matched stability evidence was found. The product has no verified organic, regenerative, fair-trade, country-of-origin, extraction-method, packaging-material, or recycling documentation. No relevant FDA recall or warning-letter record was located in the reviewed public sources.

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