Holtmore Nattokinase: Scam or Legit? Weak Proof, 28-Day Refills, Lab Doubts

A supplement that promises to clear your arteries without a statin is easy to believe after a frightening checkup, and Holtmore Nattokinase makes that promise in four words.

We opened the store, tested its claims against the studies it cites and read the lab report, the refill terms and even the page source, which still holds German notes.

Overview

What Holtmore sells

Holtmore sells one formula, a 10,000 FU nattokinase capsule blended with CoQ10, garlic and four other ingredients, through a Shopify store whose domain was registered on August 11, 2026.

The front page promises to clear arteries, shrink plaque and make a statin unnecessary, while the first bottle costs $28.95 against a crossed-out $49.95.

What did not add up

The studies it cites measure something narrower than the headline, the lab report it links names a different company from the seller, and every order joins a refill plan.

That plan ships a new 90-capsule bottle every 28 days, even though a bottle lasts 90 days at the one-capsule dose printed on the label.

What we could and could not verify

We checked the numbers ourselves, from the product page and the policies to the lab PDF, the cited papers and a Cyprus company record. Here is where that leaves us:

• Verified by us: the domain date, the prices and refill terms, the refund policy, the lab PDF, six cited abstracts and the company record.
• Not found: a US address, a named manufacturer, any credential for the quoted doctor, a working lab-report button on the front page or an FDA statement.
• Not verified: whether the capsule works, how support answers and what checkout pre-selects, because we placed no order.

Our advice is not to buy it as an artery treatment, and to read the refill and refund sections below if you already ordered.

The Studies Behind the 36% Headline

The number on the front page, 36% less plaque in 12 months, comes from a 2022 paper that we read in full on the Frontiers in Cardiovascular Medicine website.

The paper calls itself a retrospective review of clinic records, not a randomized trial, and it has no placebo group for the 10,800 FU daily dose.

Among 683 people on that dose, average carotid plaque area fell from 24.9 to 15.94 square millimeters, a 36% drop, while 229 of them showed no improvement.

That is a third of the group, and a headline that says Clear Your Arteries leaves them out.

The disclosures add a detail the store does not mention: five authors worked for Sungen Bioscience, whose nattokinase tablet from Shantou, China was the product tested.

Holtmore’s pages warn against cheap Chinese powder and stress US manufacture, yet the study behind its headline tested a Chinese-made tablet from a company that employed some of the authors.

The claim that Holtmore beats a statin three to one rests on a 2017 trial of 76 completers over 26 weeks, listed in the University of Technology Sydney repository.

That trial gave 6,000 FU a day against 20 mg of simvastatin, so the only head-to-head test used 40% less enzyme than the 10,000 FU Holtmore sells.

We checked the dose in every nattokinase paper that the science page links, and only one tested a dose near 10,000 FU.

The others used 6,000, 4,000 or 2,000 FU, and the page itself admits that most of its studies used 2,000 to 6,000 FU.

The same page credits a blood pressure drop to just 2,000 FU a day, which sits awkwardly beside the product page line that 2,000 FU does nothing.

The statin line comes from a 34-patient study of 80 mg of atorvastatin, which measured CoQ10 in blood and found it about 51% lower after 30 days.

A blood level in 34 people on a high statin dose says nothing about your heart muscle or why you feel tired, and it says nothing about this capsule.

Holtmore’s Supplement Facts list CoQ10 inside a 500 mg heart blend shared with four other ingredients, so we cannot tell whether a capsule holds 20 mg or 200 mg.

A Lab Report With Odd Details

The front page says to read the report yourself, but the Read the Report button there is switched off for visitors by the site’s own style rules.

Its code carries the note Preview, lab report link follows with the real COA, which tells us the button was a placeholder, and the science page has a twin.

The product page does link a PDF named COA_Holtmore_N1761_DIRECTOR_PREVIEW, so we opened it and read both pages as text without running anything in it.

It is a certificate from Janosik Laboratorijass, SIA of Riga, Latvia, dated August 14, 2026, reporting 10,400 FU of nattokinase per capsule for lot N1761, matching the headline.

The same report found no detectable lead, arsenic, cadmium or mercury and clean microbiology, which is reassuring about what is inside the capsule.

The store says it tests every batch, yet we found one report for one lot, with no manufacture or expiry date because the customer supplied none.

The customer on the certificate is Holtmore LLC, while the terms of service name GreiferProductions LTD in Cyprus as the seller, so the report and the store name different companies.

The sample reached the laboratory on August 10, one day before holtmore.com was registered, which suggests the brand name was in use before the website existed.

The PDF’s own properties show it was generated on October 28, 2026 by an open-source library, and its file name ends in DIRECTOR_PREVIEW, which reads like a draft copy.

A note inside says the circular mark on original reports is not a LATAK accreditation symbol, and the lab describes its quality system only as aligned to ISO/IEC 17025.

Our web searches found no trace of this laboratory, but we could not query the Latvian company register, so we cannot say whether it exists as described.

The CoQ10 row reads content as labelled with the result Conforms, yet no CoQ10 amount appears on the label, only the shared 500 mg blend.

So the report supports the nattokinase number for one lot, but it cannot confirm the CoQ10 dose that the store sells as the cure for statin side effects.

The page also contrasts Holtmore with two unnamed Amazon brands, one labeled 4,000 FU that supposedly tested at 711 FU, but gives no brand name, lab or date.

How the Holtmore Order Works

Step 1: A sale clock that restarts at your midnight

When our capture service loaded the product page at 8:44 a.m. Eastern time, the clock read 15:15:28, which is exactly the time left until midnight.

A second browser later showed 08:03:24, counting toward its own midnight, so the clock seems tied to the visitor and not to a real sale end.

We cannot see how many bottles are left, so the line about a November batch being 92% sold is unverified.

Step 2: Three offers, two with the same price

The Buy One card costs $28.95, and the Buy 1 Get 1 card, which holds two bottles, costs exactly the same, so nobody has a reason to choose the first.

The four-bottle card costs $47.95 against a crossed-out $199.80, which is four times the $49.95 list price that appears in the store’s product feed.

A small link under the cards sells the selected package once for $71.95 with no free gifts, and the page does not say how many bottles that buys.

Step 3: Every order joins a refill plan

The terms, the refund policy and the cancellation policy all state that every Holtmore order includes the refill plan, so refills look like the default, not an extra.

The first refill is charged 28 days after the order and then every 28 days until you cancel, at $45.95 per bottle for orders placed from September 19, 2026.

The one-time link above and the terms do not obviously agree, and we could not tell from the paperwork what that link does at checkout.

Step 4: A bottle lasts 90 days and the refill arrives in 28

The label dose is one capsule a day and each bottle holds 90 capsules, so a single bottle lasts 90 days, more than three times the 28-day refill cycle.

A buyer who starts with one bottle at $28.95 plus $2.50 shipping and never cancels pays $169.30 by day 84, because refills land on days 28, 56 and 84.

By day 90 that buyer holds four bottles and 360 capsules but has swallowed 90, about $1.88 per capsule taken against roughly 55 cents at list price.

The four-bottle buyer already owns a year of capsules and still receives bottle number five on day 28, reaching seven bottles and $185.80 by day 84.

We cannot see the checkout default, so these totals assume nobody cancels. They show what the plan is built to deliver if the refill box is never touched.

Step 5: A 90-day promise that needs an unopened bottle

The product page tells you to take Holtmore for 90 days and, if the numbers did not move, to email for a full refund with no questions asked.

The refund policy asks for an item that is unused, unopened and in its original packaging, with return shipping paid by you, and it refuses returns on sale items.

Every price on the page is shown as a sale against a crossed-out list price, so that exclusion could reach any order.

A bottle taken for 90 days is no longer unopened, so the promise and the policy cannot both help the buyer the promise is aimed at.

The policy is the document a card issuer would read, and we did not test how support answers a real request.

Step 6: A charge that does not say Holtmore

Payments run through Whop as merchant of record, and the statement line reads WHOP.COM/PAY, so a buyer scanning a card statement for the store name will not find it.

The contact page and the shipping policy promise replies within 10 minutes at any hour, while the front page says usually within 24 hours.

The only channels we found are an email address and a contact form, with no phone number.

Heart Claims and the Safety Advice That Is Missing

The page never says the capsule supports heart health. It says it dissolves plaque, drops blood pressure and LDL, and makes a statin unnecessary.

One passage goes further and says your clogged arteries will be gone.

We read the FDA page on structure and function claims, which lets a supplement describe how an ingredient affects normal body function and reserves treating or preventing disease for drugs.

Clogged arteries, plaque and high blood pressure are disease states, so in our reading these claims go beyond what the FDA describes for supplements.

Only the agency or a court can settle that question.

The same page says a label with such a claim must say the FDA has not evaluated it, and we found no such statement on any page we read.

Asked whether it can be taken with a prescription blood thinner, the product FAQ says to start with one capsule a day and listen to your body.

Nothing we read tells you to ask a doctor or pharmacist first, and the side effects answer says none have been reported.

Memorial Sloan Kettering’s nattokinase monograph takes the opposite line: it may raise bleeding risk with blood thinners and lists case reports that include a fatal internal bleed.

The same monograph cites a trial in healthy, low-risk people that found a null effect on subclinical atherosclerosis progression, so one group’s result may not carry over.

The store also says a statin only freezes plaque and that you will not need one, so anyone on a prescribed statin should talk to their prescriber first.

The quoted Dr. Alan Reeves, MD appears on the product image, the product page and the front page, with no practice, state, license number or publication.

A web search tying that name to nattokinase found nothing, and a doctor who cannot be checked is not an endorsement.

What the Page Source Gives Away

Reading the front page source as text, we found markup for a review banner written in German, hidden from visitors by a single style rule.

The page itself links to a review view of the front page, so we opened that link and captured what the banner says.

It reads REVIEW-ANSICHT HOME, then erfunden/neu and deine Entscheidung, which translate as review view, invented or new, and your decision.

Two hidden notes on the science page, also in German, point to where a comparison line sits and to an image brief that sets a diagram’s labels as HTML.

The preview bar for that link names the theme Holtmore New Pages + Checkout QA 08 Oct, and the plain front page’s headers report the same theme ID.

None of this harms a buyer, but it shows a sales page assembled with placeholders still in place, and the placeholders include the lab report buttons.

The front page shows 4.8 stars from 1,119 reviews and 90,000 customers, which over the 92 days since registration is about 980 new customers every day.

We can neither confirm nor rule that out, but the reviews block on the product page rendered as an empty box in our browser.

The praise we could see was short quotes with a first name, an age and a city, and one writer says they phoned to ask about testing.

We found no phone number on any page we read, and one quoted lab letter in a photo was too small to read any name or number.

Who Runs Holtmore?

The company named in the terms

The footer and the terms name GreiferProductions LTD as the seller and Holtmore as its trade name, and the terms add a Cyprus registration number, HE 455581.

A public mirror of the Cyprus register, OpenCorporates, lists that company as active with the same address and keeps the incorporation date behind a login.

We therefore cannot say how old the company is, and the lab certificate names a different business, Holtmore LLC, that we could not find in any record.

An address, a law and a payment processor

The address is Flat/Office 202 at Pyla Village Resort in Pyla, Larnaca.

Web search results list that resort name on holiday-apartment pages, so we cannot tell whether the unit is an office or a rental flat.

The terms apply Cyprus law, with consumer carve-outs for the UK, the EU, Australia and New Zealand, and binding arbitration with a class action waiver for US and Canadian buyers.

Pages promise made in the USA and shipping from the USA, yet we found no US address, no named manufacturer and no facility.

The domain, the platform and sister traces

The registry shows holtmore.com was created on August 11, 2026 through Spaceship and expires on August 11, 2027, and the site runs on Shopify.

The product feed lists six items, all under one vendor label: three nattokinase pages at $49.95, a $29.95 extra bottle, a $14.99 shipping line and a first-order bonus.

That is a single-formula store, not a template catalog, and we found no other MalwareTips article that names Holtmore, GreiferProductions or the Google Ads tag in its page source.

Two earlier MalwareTips articles on other nattokinase brands, Fernova and Corvael, also found refill terms worth reading before checkout.

What we could not confirm

We placed no order, so shipping, the real checkout default, support replies and the actual contents of the bottle are untested.

The Internet Archive was offline when we tried it, so we have no earlier version of the site, and we could not check the Latvian register for the laboratory.

Registry data does not name a person behind the domain, so the owner of Holtmore remains unknown to us beyond the company named in its own terms.

What to Do Before You Order or After You Were Charged

1. Skip it as artery treatment. Do not use Holtmore Nattokinase to replace a statin or any prescribed heart medicine, and talk to your prescriber before changing treatment.

2. Ask a pharmacist first. Nattokinase may raise bleeding risk, so check it against blood thinners, aspirin and any planned surgery before you swallow a capsule.

3. Read the final summary. Look for a refill line, the bottle count and the shipping charge before you pay, and photograph that screen.

4. Cancel in writing. Email support@holtmore.com with your order number for any refill you do not want, and ask for written confirmation before day 28.

5. Search for WHOP.COM/PAY. The store name does not appear on your card statement, so look for that line and note every refill date.

6. Return refills unopened. The refund policy covers shipped refills within 90 days, so request a return in writing before opening a bottle and keep the packaging.

7. Dispute if it stalls. A card dispute letter must reach your issuer within 60 days of the first statement showing the error.

8. Tell the FTC. File at ReportFraud.ftc.gov and name the store, the company and the promises you relied on.

Frequently Asked Questions

Is Holtmore Nattokinase a scam?

We found no proof of fraud, since a lab result and a registered company exist, but the claims stretch the evidence and the refill plan outruns the dose.

Does nattokinase clear clogged arteries?

The papers we read show smaller carotid plaque in a retrospective review and a 76-patient trial, which is not proof that a capsule clears arteries.

Can I take it with a blood thinner?

Not without your doctor or pharmacist, because a respected cancer center warns of bleeding risk, while the product FAQ only says to start with one capsule.

What would three months really cost?

Starting with one bottle and never cancelling costs $169.30 by day 84 for four bottles, while the four-bottle offer reaches $185.80 for seven bottles.

Who owns Holtmore?

The terms name GreiferProductions LTD in Cyprus, a lab certificate names Holtmore LLC, and we could not tie either to a named person.

Is the 90-day money-back guarantee real?

The written policy requires an unopened bottle and refuses returns on sale items, so a bottle you have taken for 90 days is unlikely to qualify.

The Bottom Line

Do not buy Holtmore Nattokinase as an artery treatment or statin replacement: its studies stretch the headline, its lab report names another firm and its refund needs an unopened bottle.

If you still want to try nattokinase, ask your doctor first, choose a seller whose lab report opens and is dated, and make a single purchase with no refill plan.

If you already ordered, cancel the refills in writing, return unopened bottles within 90 days, watch for WHOP.COM/PAY and dispute the charge within 60 days if the store stalls.