What the number on the bottle tells you — and what it doesn't
A checklist promising to spot a "safe" supplement in five seconds is circulating on social media. Two of its three markers are real, but none of them means what the post says. There is one check that works, and it takes about a minute.
Posted 21 September 2026
The post
The advice to flip the bottle over is sound. The problem is what the post tells you each marking proves. A reader who follows it will come away more confident than the evidence allows, which is the opposite of what a safety checklist should do.
What each marker actually means
Label Check
What the viral checklist says, against what the marker actually tells you
NPN or DIN-HM
Real, but overstatedSaid: Health Canada vetted the formula for safety and efficacy.
It is an eight-digit licence number, and a natural health product needs one to be sold legally in Canada. Homeopathic remedies carry a DIN-HM instead. But the evidence bar is far lower than for a drug. Health Canada accepts evidence ranging from traditional use, monographs and pharmacopoeias through to clinical trials, depending on the claim. In 2015, CBC Marketplace obtained a licence for an invented children's fever remedy, Nighton, without submitting scientific evidence. An NPN tells you the product is licensed. It doesn't tell you it works.
NSF Certified for Sport, Informed-Choice
Useful, but no guaranteeSaid: guarantees zero contaminants, heavy metals or banned substances.
These are voluntary, independent programs, and they are the most meaningful marker on the list. NSF Certified for Sport combines facility audits, label-claim checks, contaminant screening, and testing against a list of about 290 substances banned in sport. But the testing checks against defined panels and limits, not for "zero." Certification applies to the lots actually tested, and an independent testing group notes that some lots carrying the seal have not been tested. None of these programs tests whether a product works.
"GMP compliant"
The company's own claimSaid: proof the facility follows strict Good Manufacturing Practices.
Canadian law requires companies that make, package, label or import natural health products to hold a site licence and follow GMP. So the phrase on a bottle is a statement that the company obeys the law. It isn't independent proof. In 2021, federal auditors found that Health Canada did not routinely inspect manufacturing sites to confirm they were following good manufacturing practices before products reached the market.
Allergen and warning labels
Not yet required in fullSaid (in the graphic): verifies transparency in manufacturing.
Canada's new natural health product labelling rules add a standard Product Facts table and clearer allergen declarations. Health Canada exempted all products until June 2028, so for now a bottle may follow either the old or the new rules. Where a warning appears, it shows the label follows the licence. It says nothing about how the product was made.
Two creatine recalls that make the point
Creatine is heavily advertised right now, including on national sports broadcasts. Both of the Canadian creatine recalls below involved products with valid NPNs, and both failed on manufacturing, the one thing the "GMP compliant" line on a label is supposed to reassure you about.
| Date | Product | What went wrong | Health Canada action |
|---|---|---|---|
| Feb 2021 | Perfect Sports Core Series Pure Creatine (Genex Nutraceuticals, Concord ON), NPN 80012948 | One lot contained vitamin D that was not on the label, at a concentration high enough to pose a serious risk to health. | Type I recall, the most serious class (notice) |
| Mar 2021 | Same product, all remaining lots | The contamination, plus failure to follow Good Manufacturing Practices. The label also lacked the required "for adult use only" statement. | Product licence and the company's site licence suspended; all lots recalled (advisory) |
| Sep 2026 | Organika Creatine Gummies, NPN 80134480, lot 20260416 (recalled with Organika Lion's Mane and Reishi gummies) | The lots were imported from a foreign manufacturing site that was not listed on the company's site licence. | Type III recall, the lowest-risk class (notice) |
The NPN was on the label throughout. It is a licence, not a batch test. To see whether a product you own has been recalled, search its name at recalls-rappels.canada.ca. This list comes from searches of public records and may not be complete.
The check that works: look up the number
The one thing an NPN is good for is looking the product up. Health Canada keeps a public database of every licensed natural health product, and what the licence actually permits is often narrower than what the marketing says.
Licensed Natural Health Products Database (LNHPD)
health-products.canada.ca/lnhpd-bdpsnh- Find the number. Look for "NPN" or "DIN-HM" followed by eight digits, usually on the back or side panel.
- Search it in the database. If nothing comes up, the product may be unlicensed, the licence may have been cancelled, or the number may be wrong. Any of those is worth knowing before you buy.
- Check the licence holder and ingredients. Does the company named in the database match the one on the bottle? Do the medicinal ingredients and amounts match?
- Compare the claims. The database lists the recommended uses Health Canada authorized. Compare them with what the label, the website and the social media posts say. A product licensed as "a source of antioxidants" that is being sold to prevent cancer is making a claim no one approved.
That fourth step is where problems usually show up. In the federal audit tabled in 2021, 88% of the products auditors reviewed were being marketed with potentially misleading information, including health claims Health Canada had not authorized.
A licence is not medical advice. If you take prescription medication, are pregnant, or are buying for a child, ask a pharmacist or physician whether the product interacts with anything you already take. The database can't tell you that.
If the product doesn't match its licence
| What you found | Where it goes |
|---|---|
| No licence, a cancelled licence, contamination, or ingredients not on the label | Health Canada, using the Health Product Complaint Form (FRM-0317). For natural health products this general form is the right one. Devices have a separate form. |
| A side effect or reaction you or someone else had | Canada Vigilance, 1-866-234-2345, or online through MedEffect Canada |
| Advertising claims that go beyond what the licence authorizes | Health Canada (as above), and the Competition Bureau for misleading performance claims |
| A regulated practitioner selling or prescribing it with false claims | That practitioner's provincial college |
Contact details for all of these are collected on our registry and complaint-agency directory.
The rules are still moving
In June 2023, Parliament extended the powers of Vanessa's Law to natural health products. For the first time, Health Canada could order a recall or a label change for a product posing a serious risk, and impose higher penalties.
A private member's bill, Bill C-224, would reverse that for most natural health products. As of July 2026 it had passed second reading and been referred to the Standing Committee on Health. It has not become law. Supporters argue these are low-risk products that don't need drug-level powers. Opponents argue recall and label-change powers are exactly what is needed when a product turns out to be contaminated.
The labelling changes described above take full effect in June 2028. What a Canadian can learn from a supplement bottle depends on how both of these turn out.
Related on QuackeryWatch
Sources
- Health Canada, Licensed Natural Health Products Database: health-products.canada.ca/lnhpd-bdpsnh.
- Health Canada, "Informing You About Natural Health Products," Information Sheet #4 for Pharmacists (archived): NPN and DIN-HM, and the range of accepted evidence.
- Health Canada, "Evidence for homeopathic medicines," guidance document, updated 6 July 2022.
- CBC News / Marketplace, "Health Canada licensing of natural remedies a joke, doctor says," 2015 (the Nighton investigation).
- Commissioner of the Environment and Sustainable Development, 2021 Report 2, "Natural Health Products — Health Canada," tabled 22 April 2021, and the Office of the Auditor General's news release of the same date.
- Health Canada, "Guidance document: Labelling of natural health products," including the note on the Ministerial Order published 26 March 2025 exempting products until June 2028.
- NSF, Certified for Sport program description (nsfsport.com); BSCG, "NSF Certified for Sport vs BSCG Certified Drug Free," on testing scope and lot coverage.
- Health Canada, "Natural health product regulation in Canada: Protecting Canadians from Unsafe Drugs Act (Vanessa's Law)."
- Health Canada recall notices: Creatine Powder (RA-75035, 20 Feb 2021); "Product licence suspended for Perfect Sports Core Series Pure Creatine; all lots recalled" (RA-75037, updated 5 Mar 2021); "Organika® Gummies: Foreign site not listed on site licence" (RA-82618, 15 Sep 2026).
- Bill C-224 (45th Parliament, 1st Session), An Act to amend the Food and Drugs Act (natural health products): House of Commons debate, 10 March 2026; status as of July 2026.
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