NHP Compliance in Canada: Licensing, GMP and Labelling

Natural health products are part of daily life for most Canadians, from vitamin D and probiotics to herbal sleep aids and toothpaste. For the companies that make, import and sell them, that everyday familiarity hides a demanding regulatory system. Every product needs a licence, every site that manufactures or imports needs its own authorization, and every claim on the label has to be backed by evidence Health Canada will accept.

The rules have also moved quickly. Since 2023, Health Canada has gained stronger enforcement powers over natural health products, finalized modernized labelling requirements, and published a substantially tougher good manufacturing practices guide that came into force in March 2026. A separate cost recovery proposal that would add fees across the program remains on the table, even though it has not yet launched.

This guide explains what natural health product licensing and compliance actually involves in Canada today, the licences and quality systems you need, the recent changes that matter most, and the mistakes that most often lead to inspection findings. It is written for manufacturers, importers, distributors and brand owners who want a clear and current picture of their obligations.

Executive Summary

Natural health products, or NHPs, are regulated by Health Canada under the Natural Health Products Regulations. The framework is designed to confirm that products are safe, effective and of suitable quality before they reach consumers. The points below summarize what the rest of this guide covers.

NHPs need a product licence before sale. An approved product carries an eight-digit Natural Product Number (NPN), or a DIN-HM for a homeopathic medicine.
Companies that manufacture, package, label or import NHPs need a site licence and must meet good manufacturing practices.
Bill C-47 extended Vanessa's Law to NHPs in 2023, giving Health Canada power to order recalls, require tests and compel information.
Modernized labelling, including a bilingual Product Facts table, applies to newly licensed products now and to all NHPs by 21 June 2028.
The good manufacturing practices guide, GUI-0158 Version 4.0, came into force on 4 March 2026 and raised the bar on stability data, importer oversight and quality systems.
A proposed cost recovery fee framework has been paused, but Health Canada has signalled it will revisit fees once program changes are complete.

What Are Natural Health Products?

Natural health products are naturally sourced substances used to maintain or improve health. They include vitamins and minerals, herbal remedies, probiotics, amino acids, essential fatty acids, traditional medicines such as those used in Traditional Chinese Medicine and Ayurveda, and homeopathic medicines. In Canada they are defined and regulated under the Natural Health Products Regulations (SOR/2003-196), which came into force in 2004.

Why it matters: NHPs sit in their own regulatory category, separate from prescription drugs and from foods. The category a product falls into decides which licence you need, which claims you may make, and which manufacturing rules apply. Misclassifying a product is one of the fastest ways to end up out of compliance.

What to do: Confirm your product's classification early. If a product sits near the line between an NHP, a non-prescription drug, a cosmetic or a food, resolve that question before you invest in formulation, labelling and evidence, because the requirements differ sharply across those categories. Our guide on the differences between an NHP licence and a cannabis licence shows how much the category you choose can change.

The Natural Health Product Regulatory Framework in Canada

Health Canada regulates NHPs through its Natural and Non-prescription Health Products Directorate (NNHPD). Before a product can be sold, it must hold a product licence, the company behind it generally needs a site licence, and the product must be made under good manufacturing practices. Together these three pillars give Health Canada assurance that a product is what it says it is and is made under controlled conditions.

Product licensing and the NPN

Every NHP sold in Canada needs a product licence. To get one, an applicant submits detailed information on the medicinal ingredients, source, potency, dosage form, recommended use and supporting safety and efficacy evidence. Once licensed, the product receives an eight-digit Natural Product Number (NPN), or a Homeopathic Medicine Number (DIN-HM) for homeopathic products, which must appear on the label. The NPN tells consumers and regulators that Health Canada has reviewed the product.

Site licensing

Companies that manufacture, package, label or import NHPs must hold a site licence. The site licence confirms that the company operates under good manufacturing practices and maintains proper records, recall procedures and distribution controls. A product licence covers the product; the site licence covers the operation behind it. Many newcomers focus on the NPN and underestimate the site licence, which is often the harder and slower of the two to obtain. Structured regulatory affairs, licensing and import/export support can keep both tracks moving in parallel.

Good manufacturing practices

Part 3 of the Natural Health Products Regulations sets out the good manufacturing practices (GMP) that protect product identity, potency, purity and quality. They cover specifications, stability, premises, equipment, sanitation, records, recalls and the role of the quality assurance person. Health Canada interprets these requirements through its good manufacturing practices guide (GUI-0158), which was substantially revised in 2025.

Authorization	What it covers	Who needs it
Product licence (NPN or DIN-HM)	Confirms a specific product is safe, effective and properly labelled	Anyone who sells an NHP in Canada
Site licence	Confirms a facility meets GMP for the activities it performs	Manufacturers, packagers, labellers and importers
Good manufacturing practices	Ongoing quality controls over production and records	All licence holders, verified by inspection
Clinical trial authorization	Allows research on an unlicensed NHP or a new use	Sponsors running NHP clinical trials

Vanessa's Law and Stronger Enforcement of NHPs

Vanessa's Law is the common name for the Protecting Canadians from Unsafe Drugs Act, which gives Health Canada strong powers over therapeutic products. When Bill C-47 received Royal Assent on 22 June 2023, the definition of therapeutic product in the Food and Drugs Act was amended to include natural health products, so these powers now apply to NHPs.

Why it matters: Before 2023, Health Canada largely relied on voluntary action when an NHP raised a safety concern. Now the department can compel action. The powers that apply to NHPs include the ability to order a recall, require a label or package change to prevent serious harm, compel a company to provide safety information, and impose significantly higher fines and penalties for non-compliance.

What to do: Make sure your recall procedure is current, tested and fast. A Health Canada recall order is now a real possibility, and a company that cannot trace and retrieve its product quickly is exposed. A documented mock recall, run at least once a year, is the simplest way to prove your system works.

Three Compliance Shifts NHP Companies Must Track in 2025 and 2026

Three changes are reshaping NHP compliance right now: modernized labelling requirements, a tougher good manufacturing practices guide, and a paused but still active cost recovery proposal. Each has its own timeline, and each affects how you plan budgets, artwork and quality systems.

Modernized labelling and the Product Facts table

Amendments to the Natural Health Products Regulations introduced new labelling requirements designed to make NHP labels clearer and easier to read. The centrepiece is a bilingual Product Facts table that presents medicinal and non-medicinal ingredients, uses, warnings, directions and contact information in a standard format, along with minimum type sizes and other readability rules. The requirements applied to newly licensed products from 21 June 2025, and all NHPs on the market must comply by 21 June 2028. Updating artwork across a portfolio takes time, so the 2028 deadline is closer than it looks.

GUI-0158 Version 4.0, the new GMP standard

Health Canada published Version 4.0 of the good manufacturing practices guide for natural health products (GUI-0158) on 4 September 2025, and it came into force on 4 March 2026, replacing Version 3.0. The 165-page guide does not change the law, but it raises the evidentiary bar considerably. It treats quality as a company-wide system, expects real-time stability data to support expiry dates, sharpens the authority and accountability of the quality assurance person and senior management, and sets clear expectations for importers who rely on foreign manufacturers. We covered the practical impact in detail in our guide to GUI-0158 Version 4.0.

NHP cost recovery, paused but not cancelled

Health Canada has proposed fees for natural health products across three areas: pre-market evaluation, site licences, and an annual right to sell each licensed product. The proposal has been revised and consulted on, but it has not been implemented. Health Canada has confirmed it will revisit the cost recovery proposal once broader program adjustments are complete, so companies should plan for the possibility of fees rather than assume the idea has been dropped.

Change	Key date	What it means
Vanessa's Law applied to NHPs	22 June 2023	Health Canada can order recalls and compel information
Modernized labelling, new products	21 June 2025	Newly licensed NHPs follow the new label rules
GUI-0158 Version 4.0 in force	4 March 2026	Higher GMP and inspection expectations
Modernized labelling, all products	21 June 2028	Every NHP on the market must comply
Cost recovery fees	Not yet set	Proposal paused; fees to be revisited

NHP Compliance Checklist

Confirm your product is correctly classified as an NHP before formulating or labelling it.
Hold a valid product licence and display the NPN or DIN-HM on every label.
Hold a site licence for each facility that manufactures, packages, labels or imports your products.
Operate a documented quality system that meets Part 3 GMP and the expectations in GUI-0158 Version 4.0.
Maintain real-time stability data, with a written protocol and report, to support every expiry date.
Keep evidence on file that supports each health claim, ingredient and dosage.
Plan and budget label updates so all products meet the new labelling rules by 21 June 2028.
For imported products, hold signed quality agreements and documented release decisions for each foreign manufacturer.
Maintain a current recall procedure and run a documented mock recall at least once a year.
Report serious adverse reactions and keep distribution records that allow rapid traceability.

Common NHP Compliance Mistakes

Most inspection findings are not exotic. They come from gaps between what a company documents and what it actually does, or from treating a licence as a one-time event rather than an ongoing obligation. The issues below recur across Health Canada inspections and consulting gap assessments.

Selling before licensing, by marketing a product before the NPN is issued or with claims that go beyond what was approved.
Treating the site licence as an afterthought, then losing months when the GMP evidence is not ready.
Stability programs inherited from a supplier, with no company-held protocol or report to defend the expiry date.
Importer files that confuse a purchase contract with a GMP quality agreement.
Labels that omit required warnings, the NPN or bilingual information, or that miss the new Product Facts table.
Health claims that are not supported by the evidence Health Canada expects.
Recall procedures that exist on paper but have never been tested.

Frequently Asked Questions

What is an NPN and why does it matter?

An NPN is the eight-digit Natural Product Number that Health Canada assigns to a licensed natural health product. It must appear on the label and signals that the product has been reviewed and authorized for sale in Canada. Homeopathic medicines carry a DIN-HM instead. Selling an NHP without an NPN or DIN-HM is a compliance violation.

Do I need a site licence as well as a product licence?

In most cases, yes. A product licence authorizes the specific product, while a site licence authorizes the facility that manufactures, packages, labels or imports it. If you outsource manufacturing, the manufacturing site still needs a licence, and as the importer you generally need your own site licence and quality oversight.

How did Vanessa's Law change NHP regulation?

Bill C-47 extended Vanessa's Law to NHPs in June 2023 by including them in the definition of therapeutic product. Health Canada can now order recalls, require label or package changes, compel safety information, and apply much higher fines and penalties. The practical effect is that recall readiness and traceability are no longer optional.

When do the new NHP labelling rules take effect?

The modernized labelling requirements, including the bilingual Product Facts table, applied to newly licensed products from 21 June 2025. All NHPs on the market, regardless of when they were licensed, must comply by 21 June 2028. Because updating artwork across a portfolio takes time, most companies should start now.

What changed with GUI-0158 Version 4.0?

Version 4.0 of the GMP guide came into force on 4 March 2026. It does not change the law, but it raises expectations for how compliance is evidenced, especially around real-time stability data, importer oversight, quality systems and senior management accountability. The legal foundation is still Part 3 of the Natural Health Products Regulations.

Are NHP cost recovery fees in effect?

Not yet. Health Canada proposed and revised a fee framework covering pre-market evaluation, site licences and an annual right to sell, but it has not been implemented. The department has said it will revisit cost recovery once broader program changes are complete, so companies should prepare for fees rather than assume they are gone.

How MFLRC Can Help

Building and maintaining an NHP quality system that satisfies Health Canada takes both regulatory knowledge and practical experience. MF License and Regulatory Consultants (MFLRC) supports manufacturers, importers, distributors and brand owners across the full natural health product lifecycle, from first licence through audit and inspection readiness.

Product licensing and NPN submission strategy, including classification and evidence review.
Site licence readiness and quality system builds aligned with GUI-0158 Version 4.0.
Gap assessments that compare your operation against the Regulations and the current GMP guide.
SOP development, stability program design and validation, and quality documentation.
Importer oversight, including quality agreements and supplier qualification.
Mock recalls, CAPA support and inspection response.

Whether you are bringing a first product to market or tightening an established quality system, we can help you close gaps before an inspector finds them. Get in touch and we will map a clear, practical path to compliance.

Book a Consultation

Conclusion

Natural health product compliance in Canada rests on three things: a licensed product, a licensed and well-run site, and a quality system that can be proven on demand. The framework has tightened steadily, from Vanessa's Law in 2023 to modernized labelling and the stronger GUI-0158 Version 4.0 guide in 2026, and a cost recovery regime may still follow. Companies that treat compliance as a living system, rather than a one-time hurdle, are the ones that keep their licences, avoid recalls and earn consumer trust. Document what you do, do what you document, and keep the evidence current.