Hulda Clark · The Follow-Up · October 2026
The Zapper Is Still for Sale: David Amrein, 22 Years After the FTC Order
In 2004 Hulda Clark's longtime distributor agreed to a permanent federal court order barring him from claiming that her “zapper” and parasite cleanse cure cancer without scientific proof. In 2026 his company is selling the zapper from a Montana address, its website repeats Clark's claim that “every cancer involves a specific liver parasite,” and he signs himself “Naturopath” in a state where that title is reserved for licensed practitioners. Here is the record, and how to report it.
Who David Amrein is
When Hulda Clark ran her clinic in Tijuana, the products that went with her books (the zapper, the “Syncrometer,” the herbal parasite cleanse) were sold by David P. Amrein. In its 2003 complaint the Federal Trade Commission described him as the owner of two companies: the Dr. Clark Research Association, then a California corporation with a San Diego address, and Dr. Clark Behandlungszentrum GmbH, trading as Dr. Clark Zentrum, of Münchenbuchsee, Switzerland. The products were sold online at drclark.net and drclark.com.
On his company's website today, Amrein tells his own story: he says he has known Clark's protocol since 1995, visited her clinic in 1996 and began distributing products based on her books in 1998. He writes that he is “not a medical doctor.” He names no degree, school or licence.
What the FTC said, and what he agreed to
The FTC filed its complaint on 8 January 2003 in the US District Court for the Northern District of Ohio and announced it on 27 January. It said the defendants had no reasonable basis for claims that the Super-Zapper Deluxe killed parasites, bacteria and viruses and worked against cancer and AIDS; that the Syncrometer was more accurate than the best medical tests; and that “Dr. Clark's New 21 Day Program for Advanced Cancers” cured cancer and made surgery and chemotherapy unnecessary.
Amrein and his companies settled. The stipulated final judgment, entered in November 2004 in Judge John R. Adams's court, records that they did not admit wrongdoing. They did agree to the following:
| The order bars claims that… | Unless they have |
|---|---|
| the zapper kills bacteria, viruses and parasites in the body, or works against chronic infections, cancer or AIDS | “competent and reliable scientific evidence that substantiates the representation” |
| the zapper, the parasite program or the 21-day program cures “all forms of cancer” | |
| the Syncrometer is more accurate than standard tests or can detect any substance anywhere in the body | |
| the zapper with the parasite program cures AIDS, diabetes, multiple sclerosis, Alzheimer's, asthma or other diseases | |
| the 21-day program and zapper make surgery and chemotherapy unnecessary |
The order also required them to offer full refunds to US buyers of the products, and to keep records and file compliance reports for set periods. It applies to any device, food, drug or supplement the defendants sell in the US, not only the four named products. The court kept the power to enforce it, and the ban on unproven claims has no expiry date.
What his shop sells in 2026
The company's US shop is at us.drclark.com. Its footer reads “Copyright 2011 – 2026 © Dr. Clark Research Association,” at 1019 Hard Rock Rd, Somers, MT 59932, with a toll-free number. The “About Us” page is signed by Amrein. A “Wholesale Inquiries” page offers the products to other retailers.
| Product | How the shop describes it |
|---|---|
| VariZapper 2.0 | “Zapper according to Dr. Hulda Clark”, listed as a bestseller |
| Vari Zapper | “Honors Dr. Clark's original invention” |
| VariGamma 2.0 | “Frequency Generator for Dr. Clark and other frequency applications” |
| Zincrometer | “The new Zincrometer testing device by Dr. Hulda Clark” |
| Parasite Cleanse | “Dr. Hulda Clark's basic cleanse, the first step to recover your health!” |
| Liver Cleanse, Kidney Cleanse | “Dr. Hulda Clark's famous Liver Flush”; a Kidney Cleanse “to support kidney function” |
The home page's biography of Clark says that, using her test device, she found that “every cancer involves a specific liver parasite.” The same page calls her protocol “a promising alternative approach to health.” We found no health disclaimer on the home page.
FDA. We searched FDA's public databases (openFDA, 27 October 2026) for clearances (510(k)) and for device establishment registrations and listings under “VariZapper,” “Zincrometer,” “Syncrometer,” “Dr. Clark Research Association” and “Amrein.” We found none. FDA says its open data are unvalidated, so the finding is a reason to ask the agency, not a conclusion.
What it costs, and what you get back
Prices on the shop on 27 October 2026, in US dollars:
| Product | Price |
|---|---|
| Dr. Clark Gamma | $750.00 |
| VariGamma 2.0 frequency generator | $698.00 |
| Dr. Clark Zapper | $598.00 |
| VariSilver 2.0 colloidal silver generator | $525.00 |
| VariZapper 2.0 | $398.00 |
| Complete Bowel Program | $227.00 |
| Complete Kidney Cleanse | $137.00 |
| Complete Herbal Para-Program (parasite cleanse) | $129.00 |
| Liver Cleanse | $39.70 |
A buyer who follows the full Clark protocol — a zapper, the frequency generator, and the parasite, kidney, liver and bowel programs — spends $1,628.70 to $1,828.70 before shipping and duties.
The shop offers a “30 day money back guarantee,” but its own terms narrow it sharply:
- Opened supplements, and used products “returned because they didn't produce the expected results,” cannot be returned.
- Restocking fees run up to 20%, and up to 30% on equipment and any item over $100. On a $598 zapper that is up to $179.40.
- The buyer pays return postage; shipping charges are never refunded.
- Devices carry a two-year warranty that covers only whether they switch on and work.
Who can order. The shop ships to the US, the European Union, Canada (FedEx International or USPS), Australia and, by courier, “many” other countries — but not to Mexico or Argentina, “because of frequent customs problems.” Buyers are told they are responsible for their own country's import rules on supplements and devices.
Download the full price list, return costs and policy terms: spreadsheet (Excel, with links to each source page).
“Naturopath” in Montana
Amrein signs his company's US website “David P. Amrein, Naturopath.” Montana is one of the states that license naturopathic physicians, and it protects the title. Montana Code 37-26-401 says that only a naturopathic physician licensed under that chapter may use the titles “doctor of naturopathy,” “doctor of naturopathic medicine,” “naturopath,” “naturopathic physician” or “N.D.” The same section lets the state seek a court order against unlawful use.
On 27 October 2026 we searched Montana's licence register for naturopathic physician licences under the Board of Alternative Health Care and found no one named Amrein. A naturopathy diploma or title from Switzerland, where Amrein's other company is based, would not be a Montana licence. Whether the title on a Montana business's website breaks Montana law is for the board to decide.
The VariZapper and COVID-19
On 19 June 2020, early in the pandemic, FTC staff sent a warning letter to a US retailer, Provita Health Store, about the VariZapper and VariZapper 2.0. The retailer had promoted the device on its website, Facebook and Instagram as able “to destroy viruses, parasites, bacteria and #mold in just a few minutes,” in posts about COVID-19. The letter names Hulda Clark as the device's inventor and cites the 2004 Dr. Clark Research Association case. It went to the retailer, not to Amrein. It shows the product line is still being sold with the kinds of claims the 2004 order was written to stop.
Where the products are sold
- The company's own shop, us.drclark.com, with a wholesale programme for other retailers.
- Facebook pages under the names Dr. Clark Research Association and Dr. Clark Zentrum.
- Amazon listings under the Dr. Clark Research Association name.
A separate business, Dr. Clark Store (drclarkstore.com), also sells Clark-branded products and zappers. Nothing on its site connects it to Amrein, and this page makes no claim that it does.
The questions we are asking
- Does the Dr. Clark Research Association's current website comply with the 2004 order in FTC v. Dr. Clark Research Association, Civ. No. 1:03CV0054 (N.D. Ohio)?
- Are the VariZapper 2.0 and the Zincrometer “testing device” lawfully marketed as medical devices in the United States?
- Is David P. Amrein licensed in Montana, and if not, may a Montana business's website describe him as a “Naturopath”?
How to file a complaint
Anyone can file these complaints; you do not need to have bought anything. Each agency handles a different part of the problem, so it is worth filing with all three. Complaints are more useful when they are specific: name the company, give the web address, say what it says, and attach dated screenshots.
Montana licensing
The “Naturopath” title: Montana Department of Labor & Industry
Complaints about Montana's licensing boards, including the Board of Alternative Health Care, go to the department's Business Standards Division. It also accepts complaints about people who may be working without a required licence.
- Online: the online licence complaint form (from the department's How to File a Complaint page)
- Email: DLIBSDCOMPLAINTS@MT.GOV
- Mail: Office of Legal Services, P.O. Box 1728, Helena, MT 59624
- Phone: (406) 841-2312
What to say: that the website us.drclark.com, operated by the Dr. Clark Research Association, 1019 Hard Rock Rd, Somers, describes David P. Amrein as a “Naturopath”; that you could not find him on the state register; and ask whether this use of the title complies with MCA 37-26-401.
Federal Trade Commission
The 2004 order and the health claims: FTC
The FTC enforces its own court orders and takes reports about deceptive health advertising.
- Online: ReportFraud.ftc.gov. If the site is temporarily unavailable, try again later.
- Quote the case: FTC v. Dr. Clark Research Association, Dr. Clark Behandlungszentrum GmbH and David P. Amrein, Civ. No. 1:03CV0054 (N.D. Ohio), FTC Matter No. 022 3165, stipulated final judgment of November 2004.
- Mention the FTC staff warning letter of 19 June 2020 to Provita Health Store about the VariZapper.
What to say: that the same company named in the 2004 order sells the VariZapper 2.0 and a “Zincrometer” testing device at us.drclark.com, and that its home page states that “every cancer involves a specific liver parasite”; ask whether this complies with the order.
Food and Drug Administration
The devices: FDA Center for Devices and Radiological Health
FDA's device centre takes reports from the public that a company or person may be marketing a medical device in a way that breaks the law. You can file anonymously.
- Online: the Allegations of Regulatory Misconduct form
- Attachments: email them to CDRHDeviceAllegations@fda.hhs.gov from the same address you give on the form
- If someone was harmed by a device, report it to FDA's MedWatch programme as well.
What to say: the device names (VariZapper 2.0, VariGamma 2.0, Zincrometer), the seller and its Montana address, the website, and that you could not find an FDA clearance or establishment registration for them.
- Take screenshots of the pages you are complaining about, with the address bar and date visible.
- Save each page on the Internet Archive: paste the address into web.archive.org/save and keep the link it gives you.
- Stick to what the website says. Ask questions; let the agency decide whether a law was broken.
- In Canada, Health Canada and the Competition Bureau handle device and advertising complaints. See our guide to complaining in Canada.
Click on these links for the rest of the Hulda Clark story
Disclosure: Dr. Polevoy was a plaintiff in a 2000 libel suit that named David Amrein among the defendants. See Barrett v. Rosenthal. This page relies on court records, government documents and the company's own website, each listed below. Descriptions of the website are as captured on 27 October 2026; if it changes, this page will note it. Corrections are welcome.
Sources
- Federal Trade Commission. “Swiss Company Charged by FTC with Making Unsubstantiated Health Claims.” Press release, 27 January 2003.
- FTC v. Dr. Clark Research Association et al., Civ. No. 1:03CV0054 (N.D. Ohio). Stipulated Final Judgment and Order for Permanent Injunction, November 2004. FTC case page: Matter No. 022 3165.
- Federal Trade Commission staff. Warning letter to Provita Health Store concerning the VariZapper, 19 June 2020.
- Dr. Clark Research Association. Dr. Clark Online Shop and About Us, us.drclark.com, accessed 27 October 2026.
- Dr. Clark Research Association. Shop listing, Returns & Exchanges, Terms & Conditions and Shipping Policy, accessed 27 October 2026.
- Montana Code Annotated 37-26-401, “License required — titles restricted — enjoining unlawful practice.”
- Montana Department of Labor & Industry. Licence search, Board of Alternative Health Care, searched 27 October 2026; How to File a Complaint.
- US Food and Drug Administration. Allegations of Regulatory Misconduct form; openFDA device 510(k) and registration/listing databases, searched 27 October 2026.