Best Pterostilbene Supplements 2026: 6 Products Compared

Last updated: September 26, 2026 · Originally published August 28, 2026 · Published by Eternal Elixir

Edited by Elaine Fletcher, Researcher

Disclosure: Eternal Elixir makes supplements, and one of the six products in this comparison is ours. Eternal Elixir makes Trans-Pterostilbene 500mg, and it is our pick. Every figure for the other five products comes from their own labels, product pages and lab reports, read in September 2026, and every study figure comes from the published paper. No brand paid to be included. Here is how we write and review content.

The best pterostilbene supplements in 2026 differ less on purity claims than on one number: how much pterostilbene each capsule holds. The six we compare range from 50 mg to 500 mg per capsule, a tenfold spread. The published human trials gave people between 10 mg and 250 mg a day. That gap decides what you pay per milligram, and whether a bottle can match a dose that has actually been tested.

We read every label, price and lab report on the sellers’ own US pages, worked out the cost per 100 mg of pterostilbene, and set each product against the doses the trials used. Where our own capsule sits outside that range, we say so.

Best pterostilbene supplements 2026: the six compared

Prices come from each seller’s own US listing, as of Sep 2026. Cost per 100 mg is the bottle price divided by the total pterostilbene in the bottle. It is the only fair way to compare a 50 mg capsule with a 500 mg one.

Cost per 100 mg runs from $0.14 to $1.00, about a sevenfold spread, and it runs almost opposite to bottle price. The $8.19 Swanson bottle is the cheapest to buy and costs close to four times more per milligram than ours. Only two products reach a trial dose with a single capsule: ProHealth at 250 mg and Double Wood at 100 mg. Ours does not, and its entry below explains what that means for you.

Add Trans-Pterostilbene 500mg to cart · $64.99

What to check on a pterostilbene label

Pterostilbene is a stilbene, a close chemical relative of resveratrol in which two of resveratrol’s three hydroxyl groups carry a methyl group. It occurs in small amounts in blueberries and in the heartwood of Pterocarpus marsupium, the tree Jarrow’s extract comes from. On a supplement shelf, five label details separate one bottle from another.

• Milligrams of pterostilbene, not of extract. Jarrow lists 50 mg of trans-pterostilbene from 56 mg of extract, which tells you exactly what you get. A label that gives only an extract weight, with no percentage, tells you much less.
• The trans isomer. Trans-pterostilbene is the form used in the main metabolic trial below. Our label, Jarrow’s and Vitality Pro’s name it. ProHealth, Double Wood and Swanson list “pterostilbene” without saying which isomer.
• The serving. All six use a one-capsule serving, but ProHealth and Vitality Pro allow up to two capsules a day, which doubles the daily amount.
• A named lot result. ProHealth and Double Wood show a lab result for a specific lot on the product page, and Vitality Pro posts batch certificates. A general “tested” badge tells you less.
• Extras. Vitality Pro adds grape seed extract and piperine. That may suit you, but piperine can change how the body handles some medicines, so ask your pharmacist first if you take any.

How we ranked these six pterostilbene supplements

Eternal Elixir makes Trans-Pterostilbene 500mg, and it sits first as our pick, for the reasons and with the limits set out in its entry. We did not send any product to a lab. Every competitor figure comes from its own label, product page or published lot report. The other five are ordered on four things:

• Fit with a studied dose: can one capsule, or a whole number of capsules, match a daily amount used in a human trial?
• Published lot testing: does the seller show a lab result for a named lot?
• Cost per 100 mg: the price divided by the total pterostilbene in the bottle.
• Label clarity: is the isomer named, and is everything in the capsule listed?

ProHealth ranks second because it matches the 250 mg trial arm in one capsule, publishes a lot result and costs $0.19 per 100 mg. Double Wood follows with the 100 mg arm and its own lot result. Jarrow names the isomer and uses the extract from a 2023 safety trial, but it is the most expensive per milligram. Swanson is the cheapest bottle, with no lot result on its page. Vitality Pro is a combination product that ships from the UK.

1. Eternal Elixir Trans-Pterostilbene 500mg: our pick

Key facts: 500 mg trans-pterostilbene per capsule, 90 capsules, 90 servings at one capsule per serving, $64.99, $0.72 per serving, $0.14 per 100 mg. Other ingredients: rice flour and a cellulose capsule.

Eternal Elixir Trans-Pterostilbene 500mg puts more pterostilbene in each capsule than any other product in this comparison. A bottle holds 45,000 mg. That is three times the 15,000 mg in a ProHealth bottle and seven and a half times the 6,000 mg in a Double Wood or Vitality Pro bottle, which is why its cost per 100 mg is the lowest here. The label names the trans isomer and lists only two other ingredients, rice flour and the capsule shell. Our product page states the evidence level for pterostilbene and says plainly that this exact product has not been clinically tested.

Here is the case against it. One capsule is 500 mg, twice the highest daily amount given in any published trial we found (250 mg, in the Riche trial described below). No published trial we found has tested 500 mg a day, so you would be taking an amount with no human data behind it. You cannot split a filled capsule accurately at home. And in that trial, LDL cholesterol rose on pterostilbene alone at both 100 mg and 250 mg a day, so a larger amount is not a safer bet for anyone watching their lipids. If you want to stay within tested doses, buy ProHealth or Double Wood instead.

Who it suits:

• Adults who already take pterostilbene, know how they respond and want the most milligrams for their money
• People buying NMN, NR or resveratrol from us who want one order and one delivery
• Anyone who wants a short label with the isomer named

Who should skip it:

• First-time users, and anyone who wants to stay inside the doses that trials have tested
• People managing their LDL cholesterol, or taking cholesterol or blood pressure medicines, unless their doctor agrees
• Anyone who wants the lowest upfront price: at $64.99 it is the most expensive bottle here

Buying more than one bottle lowers the price per bottle: two bottles save 10%, three save 15% and five save 20%. Orders over $100 ship free in the US, and every order carries our 30-day money-back guarantee.

Add Trans-Pterostilbene 500mg to cart · $64.99

2. ProHealth Pterostilbene Pro 250: the 250 mg trial dose in one capsule

Key facts: 250 mg pterostilbene per capsule, 60 capsules, 60 servings, $29.15, $0.49 per capsule, $0.19 per 100 mg. Other ingredients: a hypromellose capsule and rice flour. Label directions: one capsule once or twice a day, preferably with food.

ProHealth Longevity’s capsule matches the high-dose arm of the Riche trial (125 mg twice a day, 250 mg in total) in a single capsule. The product page links a lab report for lot 23338b from Brighton Laboratory, an ISO/IEC 17025-accredited lab, issued on July 17, 2025. It found 252.22 mg of pterostilbene per capsule against a claim of at least 250 mg. That is the clearest line from a label to a lot result to a trial dose in this comparison.

Two things to weigh. The label does not say which isomer the capsule contains. And its directions allow two capsules a day, which is 500 mg, the same as one of ours and twice the trial’s highest dose. At 250 mg a day the Riche trial saw blood pressure fall and LDL cholesterol rise, so this is a deliberate dose rather than a casual one.

Suits: buyers who want the studied 250 mg dose without any arithmetic. Skip it if: you want a smaller starting dose, or your LDL is already a concern for you and your doctor.

3. Double Wood Pterostilbene: the 100 mg trial dose

Key facts: 100 mg pterostilbene per capsule, 60 capsules, 60 servings, $19.95, $0.33 per capsule and $0.33 per 100 mg. Other ingredients: a gelatin capsule, microcrystalline cellulose and vegetable stearate. Label directions: one capsule a day.

One capsule gives 100 mg, the daily total in the Riche trial’s low-dose arm (50 mg twice a day) and the higher dose in a 2025 pilot study in healthy men. Double Wood posts a lab result for lot 2530103, made in February 2026 and tested by Brand Nutraceuticals: 98.24 mg per capsule, inside its stated range of 90 to 125 mg. The product page says pterostilbene is best taken with food. This is the cheapest bottle here that reaches a studied dose with one capsule, and the double and triple packs cost $37.91 and $53.87.

Two limits. The capsule is gelatin, so it does not suit vegetarians, and the label does not name the isomer. At $0.33 per 100 mg it also costs more than twice as much per milligram as ours.

Suits: first-time buyers who want a tested dose at a low price. Skip it if: you avoid gelatin. We cover the rest of the brand’s range in our Double Wood Supplements review.

4. Jarrow Formulas trans-Pterostilbene: small steps, a trial-tested extract

Key facts: 50 mg trans-pterostilbene from 56 mg of Pterocarpus marsupium extract per capsule, 60 vegetarian capsules, 60 servings. It costs $29.99 on Jarrow’s own site or $24.09 at Swanson Vitamins, which works out to $0.50 or $0.40 a capsule and $1.00 or $0.80 per 100 mg. Label directions: one capsule a day.

Jarrow’s extract is Silbinol, the same branded Pterocarpus marsupium extract tested in the 2023 safety trial below, which gave 60 healthy adults either 200 mg a day of it or a placebo for two months. The label names the trans isomer and lists every excipient. At 50 mg a capsule you can build up slowly, and two capsules give the 100 mg daily total of the Riche trial’s low-dose arm.

The price of that flexibility is the highest cost per milligram in this comparison. At two capsules a day, a bottle lasts one month.

Suits: cautious buyers who want to start low and add capsules in small steps. Skip it if: cost per milligram matters most to you.

5. Swanson Ultra Pterostilbene: the cheapest bottle to try

Key facts: 50 mg pterostilbene per capsule, 30 vegetarian capsules, 30 servings, $8.19, $0.27 per capsule, $0.55 per 100 mg. Other ingredients: a hypromellose capsule, microcrystalline cellulose, magnesium stearate and silica. Label directions: one capsule a day.

At $8.19 this is the smallest outlay here if you only want to find out whether pterostilbene agrees with you. The bottle is small, though. At the 100 mg a day of the Riche low-dose arm, 30 capsules last 15 days. The label does not name the isomer or the plant source, and we found no lot result on the product page. The page showed 3.5 out of 5 stars from 8 reviews when we checked in September 2026.

Suits: a cheap first try. Skip it if: you want a supply that lasts, or a published test result. Our Swanson review covers the brand’s testing and guarantee in more detail.

6. Vitality Pro Advanced Pterostilbene: pterostilbene with grape seed extract

Key facts: 100 mg trans-pterostilbene, 200 mg grape seed extract and 10 mg piperine per capsule, 60 capsules, $38.00, $0.63 per capsule and $0.63 per 100 mg of pterostilbene. Label directions: one capsule a day, or two.

Vitality Pro is a UK company and ships to the US from there. It posts batch certificates from Micro Quality Labs, an ISO 17025-accredited lab, and lists its January 2026 batch at 99.5% purity. The formula builds on one finding from the Riche trial: the LDL rise seen with pterostilbene alone was not significant in the group that also took a grape extract. The detail matters. That trial used a Concord grape extract, not grape seed extract, so its result does not carry over directly to this formula.

Piperine can change how the body handles some medicines, so talk to your pharmacist or doctor first if you take any prescription medicine. After Jarrow, this is the most expensive option here per milligram of pterostilbene.

Suits: buyers who specifically want grape polyphenols in the same capsule. Skip it if: you take medicines that piperine could affect, or you want a bottle shipped from inside the US.

What human research on pterostilbene shows

Most of what you read about pterostilbene online comes from cell and animal studies, which a 2013 review by McCormack and McFadden surveys in detail. The human record is smaller, but it is more than one trial. These studies gave pterostilbene by mouth to people:

Evidence level: early. There are a handful of small human trials, the largest of which enrolled 120 people, and the Riche trial is the only one designed to test pterostilbene on its own for effects on cholesterol and blood pressure. What has been shown: short-term tolerance at up to 250 mg a day, a fall in blood pressure at 250 mg a day in adults whose cholesterol met the trial’s entry cut-off, and a rise in LDL. What has not been shown: any effect on aging, lifespan, memory or thinking in people, any benefit from more than 250 mg a day, and any trial of our 500 mg capsule or of any other finished product on this page.

Two practical points follow. The blood pressure change appeared at 250 mg a day, which is a reason to take the dose seriously. The LDL rise appeared at both doses in the Riche trial, so anyone watching their LDL should talk to their doctor before starting and ask about rechecking their lipids after a couple of months.

See Trans-Pterostilbene 500mg · $64.99

Pterostilbene vs resveratrol: which is better?

They are related stilbenes, and they are not interchangeable. In rats given equal molar doses for 14 days, pterostilbene was about 80% bioavailable by mouth against about 20% for resveratrol (Kapetanovic 2011). That rat study is the basis for most “better absorbed” claims on labels. It has not been repeated as a head-to-head comparison in people, and we found no human trial that compares the two directly on any outcome.

Resveratrol has the larger body of human research. Pterostilbene has fewer and smaller trials, plus the LDL signal described above. So “better” depends on what you value. Pterostilbene makes sense if the animal absorption data matter most to you and you accept thinner human evidence. Resveratrol makes sense if you want the larger evidence base. Our Trans-Resveratrol 600mg comes in 90-capsule bottles at 600 mg per capsule, and our resveratrol supplement comparison ranks seven products on the same cost-per-milligram basis as this page.

How much pterostilbene should you take a day?

Follow the label of the product you buy, and talk to your doctor first if you take prescription medicines. For context, these are the daily amounts human trials have used:

• 10 to 100 mg a day: the 2025 pilot in healthy men (10 mg or 100 mg for 12 weeks) and the low-dose arm of the Riche trial (100 mg). One Swanson, Jarrow or Double Wood capsule falls in this range, as do two Jarrow capsules.
• 200 mg a day: the 2023 Silbinol safety trial and the NR combination study in older adults. Two Double Wood or Vitality Pro capsules, or four Jarrow capsules, reach it.
• 250 mg a day: the high-dose arm of the Riche trial, where both systolic and diastolic pressure fell. One ProHealth capsule gives this amount.
• 500 mg a day: one capsule of ours, or two of ProHealth’s. No published trial we found has tested this amount.

Several sellers here, including ProHealth on its label and Double Wood on its product page, suggest taking pterostilbene with food. If you are new to it, starting at a studied amount and staying there for the 6 to 12 weeks the trials ran is the cautious route.

Pterostilbene side effects and who should check first

In the trials above, side effects were uncommon and no serious adverse events were reported. The one consistent signal is LDL cholesterol. It rose 17.1 mg/dL on pterostilbene alone in the Riche trial, and it rose from baseline within both groups in the Dellinger combination study. In the Riche data, people already taking a cholesterol medicine showed a smaller LDL effect.

Talk to your doctor before you start if any of these apply to you:

• You take cholesterol or blood pressure medicines.
• You are managing your LDL cholesterol.
• You are pregnant or breastfeeding, or under 18.
• You take any prescription medicine and are considering a product that contains piperine.

No trial we found of pterostilbene taken on its own has run longer than 12 weeks, so there are no long-term safety data in people yet.

Where pterostilbene fits in a longevity routine

Pterostilbene is often paired with an NAD+ precursor, the combination tested with nicotinamide riboside in the Dellinger and Jensen studies. Those trials tested the pair together, so they do not tell you what pterostilbene adds on its own. If you want to build that routine from our range, Nicotinamide Riboside 500mg comes in 60-capsule bottles at one capsule per serving, and NMN 500mg comes in 90-capsule bottles at 500 mg per capsule. The NMN Advanced Longevity Complex and Spermidine 10mg are other options in the same range. Buying them together means one delivery, and orders over $100 ship free.

For a wider view, our longevity supplement comparison ranks eight products, while the NAD+ booster guide and the nicotinamide riboside comparison cover the precursor side. Our NMN vs resveratrol comparison explains how those two differ. For how label doses compare with trial doses across the category, see our supplement dose gap report.

Frequently asked questions about pterostilbene supplements

Which brand of pterostilbene is considered the best?

Our pick is Eternal Elixir Trans-Pterostilbene 500mg, for the most pterostilbene per capsule in this comparison and the lowest cost per 100 mg ($0.14), on a label that names the trans isomer. Its 500 mg capsule is above every dose tested in trials. If you want a studied dose, ProHealth Pterostilbene Pro 250 matches the 250 mg trial arm and publishes a lot result, and Double Wood matches the 100 mg arm for $19.95.

Add Trans-Pterostilbene 500mg to cart · $64.99

How much pterostilbene should I take daily?

Follow the label of your product. Human trials have used 10 to 250 mg a day, most often 100 to 250 mg, for up to 12 weeks, and no published trial we found has tested more than 250 mg a day. If you take prescription medicines or are managing your LDL cholesterol, talk to your doctor first.

Is pterostilbene worth taking?

It depends on what you want from it. In the 80-adult Riche trial, 250 mg a day reduced blood pressure over 6 to 8 weeks but raised LDL cholesterol. Safety trials in healthy adults found it well tolerated at up to 200 mg a day. There is no human evidence yet for effects on aging, lifespan or memory. If you want a stilbene with more human research behind it, resveratrol has more.

Which is better, resveratrol or pterostilbene?

Neither has been shown to be better in people, because we found no human trial comparing them head to head. In rats, pterostilbene was about 80% bioavailable by mouth against about 20% for resveratrol. Resveratrol has more human trials. Choose pterostilbene if the absorption data matter most to you, and resveratrol if you want the larger evidence base.

What are the side effects of pterostilbene?

Trials reported few side effects and no serious adverse events at up to 250 mg a day. The one consistent finding is a rise in LDL cholesterol, 17.1 mg/dL on pterostilbene alone in the Riche trial. Talk to your doctor before starting if you take cholesterol or blood pressure medicines, or if you are pregnant or breastfeeding.

Is trans-pterostilbene different from pterostilbene?

Trans-pterostilbene is the specific isomer, and it is the form the Riche trial used (over 99% all-trans). Many labels just say “pterostilbene”. Ours, Jarrow’s and Vitality Pro’s name the trans form, while ProHealth’s, Double Wood’s and Swanson’s do not.

Is a 500 mg pterostilbene capsule too strong?

It is twice the highest daily dose tested in the published trials we found, 250 mg, so there are no human data we know of on taking 500 mg a day. That does not show it is unsafe, but it does mean you are outside the studied range. If you want to stay inside it, choose a 100 mg or 250 mg capsule. Our own 500 mg capsule suits people who already take pterostilbene and want the lowest cost per milligram.

Where can I buy pterostilbene supplements in the US?

All six sell direct from their own websites: Eternal Elixir, ProHealth, Double Wood, Jarrow, Swanson and Vitality Pro, which ships from the UK. Jarrow is also sold through Swanson Vitamins, where it cost $24.09 when we checked. Before you order, our pterostilbene benefits and dosage guide sets out what the research supports.

How much does a pterostilbene supplement cost?

Bottles in this comparison cost $8.19 to $64.99, as of Sep 2026. Per 100 mg of pterostilbene the range is $0.14 for ours to $1.00 for Jarrow bought direct, and that is the fairer number to compare.

Verdict: which pterostilbene supplement should you buy?

• Our pick: Eternal Elixir Trans-Pterostilbene 500mg, $64.99 for 90 capsules and $0.14 per 100 mg, for experienced users who want the most pterostilbene for their money. Its 500 mg capsule is above every tested dose.
• For the 250 mg trial dose: ProHealth Pterostilbene Pro 250 at $29.15, with a published lot result.
• For the 100 mg trial dose on a budget: Double Wood Pterostilbene at $19.95.
• To start in 50 mg steps: Jarrow trans-Pterostilbene, $24.09 at Swanson.
• For the cheapest first bottle: Swanson Ultra Pterostilbene at $8.19.
• For pterostilbene with grape seed extract: Vitality Pro at $38.00, shipped from the UK.

Whichever you choose, compare cost per 100 mg rather than bottle price, and match the capsule to the daily amount you actually intend to take.

More guides: our NMN supplement comparison, the spermidine supplement rankings, our mitochondrial supplement guide and the longevity stack comparison cover the rest of the category. Browse all our supplement guides, the Eternal Elixir blog or the full shop.

Sources

1. Riche DM, Riche KD, Blackshear CT, McEwen CL, Sherman JJ, Wofford MR, Griswold ME. (2014). Pterostilbene on metabolic parameters: a randomized, double-blind, and placebo-controlled trial. Evidence-Based Complementary and Alternative Medicine. PMID 25057276
2. Riche DM, McEwen CL, Riche KD, Sherman JJ, Wofford MR, Deschamp D, Griswold M. (2013). Analysis of safety from a human clinical trial with pterostilbene. Journal of Toxicology. PMID 23431291
3. Majeed M, Nagabhushanam K, Paulose S, Mundkur L. (2023). A short-term safety evaluation of Silbinol, an extract from Pterocarpus marsupium, in healthy adults: a randomized, double-blind, placebo-controlled study. Journal of Evidence-Based Integrative Medicine. PMID 37671486
4. Otsuka K, Kuriki D, Kamachi K, Tanaka A, Matsuoka R. (2025). Analysis of the effects of short-term pterostilbene intake on healthy participants: a pilot study. Journal of Nutritional Science and Vitaminology. PMID 40024751
5. Dellinger RW, Santos SR, Morris M, et al. (2017). Repeat dose NRPT (nicotinamide riboside and pterostilbene) increases NAD+ levels in humans safely and sustainably: a randomized, double-blind, placebo-controlled study. npj Aging and Mechanisms of Disease. PMID 29184669
6. Jensen JB, Dollerup OL, Møller AB, et al. (2022). A randomized placebo-controlled trial of nicotinamide riboside and pterostilbene supplementation in experimental muscle injury in elderly individuals. JCI Insight. PMID 35998039
7. Kapetanovic IM, Muzzio M, Huang Z, Thompson TN, McCormick DL. (2011). Pharmacokinetics, oral bioavailability, and metabolic profile of resveratrol and its dimethylether analog, pterostilbene, in rats. Cancer Chemotherapy and Pharmacology. PMID 21116625
8. McCormack D, McFadden D. (2013). A review of pterostilbene antioxidant activity and disease modification. Oxidative Medicine and Cellular Longevity. PMID 23691264
9. Product labels, prices and lab reports: Eternal Elixir, ProHealth, Double Wood, Jarrow and its Swanson listing, Swanson Ultra and Vitality Pro product pages, all read September 2026.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.