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How to Prepare Finished Product Specifications (FPS) for NHPs 

How to Prepare Finished Product Specifications (FPS) for NHPs 


Finished Product Specifications (FPS) are crucial documents that outline the minimum quality standards an Natural Health Product (NHP) must meet before it can be imported, sold, or distributed in Canada. These specifications are mandated under Health Canada’s Natural Health Products Regulations (NHPR), and every NHP must strictly comply with the specifications outlined in its product licence application. 

June 2026 Update: Health Canada has updated the requirement for FPS submissions for Class II and Class III product licence applications (PLAs). Learn more about the recent updated and how to prepare your submission package in our recap of the update:

Health Canada Updates FPS Expectations for Class II and III NHP Licence Applications

An FPS demonstrates to Health Canada that each batch of manufactured product has undergone appropriate testing, confirming that the NHP meets all required safety, efficacy, and quality standards. 


Internally, an FPS acts as internal tools to verify that the product has been consistently manufactured and tested in line with the specifications approved by Health Canada before being released to the market.


The FPS outlines important criteria, including the identity, potency, purity, microbial limits, and stability of the product. These specifications must be met consistently throughout the product’s shelf life to ensure the ongoing safety and performance of the finished product. This guide covers the key components of a compliant FPS, how to develop one, and how to maintain and update specifications as needed. 

For example, in a product like a multivitamin, the FPS would define the exact amount of each vitamin and mineral, ensuring that the final product contains the specified levels for the intended health benefits (claims) per the product licence. If the product is an herbal supplement, the FPS would detail the type of plant extract, its active constituents, and any potential contaminants that need to be controlled, such as heavy metals or pesticide residues. 

Testing methods for NHPs must be reliable, reproducible, and appropriate for the ingredients and product being assessed. Health Canada requires that testing methods reflect those outlined in recognized pharmacopeias such as the United States Pharmacopeia (USP), the British Pharmacopoeia (BP), and the European Pharmacopoeia (Ph. Eur.), where applicable. These pharmacopeial references provide standardized procedures for assessing a range of substances used in NHPs, including vitamins, minerals, amino acids, and herbal extracts. 

For instance, if a product contains vitamin C, the FPS might reference the USP monograph for vitamin C and recommend testing using High-Performance Liquid Chromatography (HPLC) to confirm its amount in the product. This method is widely recognized for its accuracy and reproducibility, ensuring that the amount of vitamin C in the product aligns with the label claim.

When a pharmacopeial method is available, it must be used to assess key quality parameters such as identity, potency, and purity.

For example, HPLC may be used to determine the amount of vitamin C in a product following a validated procedure from the USP. However, if no pharmacopeial method is available for a specific ingredient (like an uncommon herb or a novel ingredient), manufacturers can use in-house or alternative methods, provided they offer a scientific rationale to demonstrate reliability and suitability. 

To illustrate, if a new herbal extract is used in a product and no pharmacopeial method exists for testing, the manufacturer might use a validated HPLC method to assess the active compounds in the extract. They would provide supporting data to demonstrate that the method is scientifically appropriate for the product. It’s crucial to document and justify any alternative methods in the FPS, as this helps ensure the reliability of the testing and the safety of the final product. 

Each FPS submitted to Health Canada at the time of product licensing contains critical elements related to product specifications and testing methods. These sections include the following: 


The FPS must include general product information such as declaration of the primary brand name and dosage form of the product. The available product dosages include capsule, tablet, liquid, and other formats. For products with formats that have not been listed on the FPS, applications can select the “other” box and specify the dosage form.

For instance, “other” can be selected for effervescent tablets. Information listed on the FPS should match the PLA and ultimately the product label. 


This section categorizes the ingredients in the NHP, such as classifying piperine as an “isolate” or papain as an “enzyme.” Identifying the product type helps determine the appropriate testing methods and ensures accurate labelling.

For instance, an enzyme like papain would require specific testing methods for activity (e.g., enzyme assay), while an isolate like piperine would need to be tested for purity and concentration using methods like HPLC. All relevant product types need to be selected. 


This specifies the amount of each medicinal ingredient and the acceptable tolerance limits. For example, a product containing ginseng might specify that it contains 100 mg of the root extract per dose, with a tolerance of ±20%.

Health Canada prefers that medicinal ingredients be assayed in the finished product, but when this is not feasible, manufacturers may use input-based quantification, provided they can justify the methodology scientifically. For example, in a product containing powdered ginger, manufacturers might use input-based quantification (based on the amount of dried root powder added) instead of directly testing the finished product. 


This section reflects the amount of active ingredient(s) that contribute to the product’s intended therapeutic effect. Potency can be determined at the raw material or finished product stage, depending on the ingredient’s stability and the manufacturing process.

For instance, in a milk thistle product, the potency would be based on the amount of silymarin, which is the active compound responsible for the herb’s therapeutic effects. Potency testing can occur either at the raw material stage (before processing) or in the finished product (after processing and formulation). Tolerance limits for potency must be defined based on scientific data or pharmacopeial standards, ensuring that the active ingredient content meets the label claims. 


This section describes how each medicinal ingredient is identified to ensure it matches what is declared on the product label.

For example, if the product contains Echinacea purpurea root, identity testing might follow the USP monograph for Echinacea, using High-Performance Thin-Layer Chromatography (HPTLC) to detect characteristic marker compounds. Identity testing can be performed at the raw material or finished product stage, depending on the ingredient’s nature and the manufacturing process.

Pharmacopeial standards should be followed where available, and any deviations from these methods should be scientifically justified. 


This section addresses testing for contaminants such as heavy metals (e.g., lead, arsenic), pesticides, microbial impurities, residual solvents, and other ingredient-specific parameters. For example, a turmeric-based product may require testing for lead and arsenic, with acceptable limits defined by pharmacopeial standards like those outlined in the USP. Stability testing is also included to ensure the product maintains its intended potency, purity, and safety throughout its shelf life. 

Importantly, product quality and ingredient-specific parameters apply to both medicinal and non-medicinal ingredients. This means manufacturers and responsible parties must assess the full formulation, not just the active ingredients. For instance, stability testing might involve exposing the product to various conditions—such as elevated temperatures, humidity, or light—to confirm the stability of compounds like curcumin in turmeric. Similarly, pesticide testing applies not only to the medicinal ingredients but also to any non-medicinal components of botanical, algal, bacterial, fungal, or animal origin, including extracts and isolates. 


This section includes tests that ensure dosage forms like tablets, capsules, or liquids are produced consistently between batches and are safe for consumption. For instance, a tablet-based NHP would undergo a uniformity of dosage units test to ensure each tablet contains the correct amount of active ingredient.

Disintegration and dissolution tests are important for verifying that the product breaks down properly in the body to release the active ingredients. For products with preservatives, antimicrobial effectiveness must also be tested to ensure that the preservatives prevent microbial growth throughout the product’s shelf life. For example, liquid supplements with added preservatives like sodium benzoate might undergo microbial challenge testing to confirm the preservative’s effectiveness. 

Each section of the FPS must be aligned with regulatory standards and reflect the product’s true characteristics. If an ingredient fails to meet a specific quality standard—such as containing levels of heavy metals above allowable thresholds—the product may be considered non-compliant, potentially jeopardizing its product license and ability to be sold in Canada. In any instance that testing results do not meet established quality requirements, a sound rationale must be provided to substantiate such deviations. 

Compliance with the FPS is critical to ensuring the safety, efficacy, and high quality of NHPs in Canada. The FPS serve as the foundation for maintaining consumer trust, and adherence to these specifications is vital for several reasons: 

The FPS ensures that NHPs are free from harmful contaminants. For instance, a product containing herbal ingredients like ginseng or echinacea must be tested for microbial contamination and pesticide residues, which could pose health risks. Adhering to strict purity standards helps protect consumers from exposure to these potentially harmful substances. 

The FPS guarantees that each product delivers its intended therapeutic benefits. If a product claims to provide immune support using Echinacea purpurea, the FPS ensures that the product contains the correct potency of active compounds, such as alkylamides, which are responsible for its therapeutic effects. 

The FPS is crucial for obtaining and maintaining regulatory approval from Health Canada. Compliance with the FPS ensures that the product meets established standards, facilitating market entry and ensuring that the product can remain on the market without facing recalls or regulatory issues. If any specifications change after product approval—such as a change in manufacturing methods or ingredient suppliers—the FPS must be updated, and Health Canada must be informed. 

To create an effective FPS for NHPs, manufacturers should: 

Clearly define the specifications for identity, potency, purity, and any other relevant quality attributes. These specifications should be based on recognized pharmacopeial standards and Health Canada’s guidance documents.

For instance, if a product contains St. John’s Wort, the FPS should define the minimum amount of hypericin required in each dose, based on existing clinical data. 

Always use scientifically validated testing methods to ensure reliable, consistent results. Testing should align with pharmacopeial standards wherever possible.

For example, the USP monograph for vitamin C defines the method for testing vitamin C using HPLC. In cases where no pharmacopeial method exists, alternative methods can be used but must be scientifically justified and supported. 

Define scientifically justified limits for each specification, such as acceptable levels of potency, microbial contamination, and impurities.

For example, the acceptable limit for arsenic in a product might be set at 1 ppm (parts per million), based on the USP or another recognized standard. 

Include detailed descriptions of the methods used for testing each specification, ensuring reproducibility and consistency.

For example, if testing for microbial contamination, the FPS should specify whether a total aerobic microbial count (TAMC) or a total yeast and mold count (TYMC) is used and outline the acceptable limits.  

Include detailed descriptions of the methods used for testing each specification. Stability data is crucial to demonstrate that the product will maintain its quality throughout its shelf life. This might include tests that simulate long-term storage conditions to ensure that active ingredients like omega-3 fatty acids in softgel capsules do not degrade and lose efficacy over time, ensuring reproducibility and consistency.

For example, if testing for microbial contamination, the FPS should specify whether a total aerobic microbial count (TAMC) or a total yeast and mold count (TYMC) is used and outline the acceptable limits.  

Once an FPS is submitted and the product is licensed, the FPS must remain accurate and reflect any changes to the formulation, testing methods, or manufacturing processes over time. For example, if the supplier of an herbal extract changes or a new testing method is introduced, the FPS must be updated accordingly. Manufacturers must submit these changes to Health Canada. 

Regularly reviewing and updating an FPS ensures that it remains compliant with evolving regulatory standards and reflects the most current scientific knowledge. If a new pharmacopeial standard is introduced or a novel ingredient is used, the FPS should be updated to reflect these changes. 

Accurate and comprehensive FPS is essential for the successful registration, marketing, and compliance of NHP in Canada. The FPS ensures that products meet the required safety, efficacy, and quality standards which in turn fosters consumer trust. By adhering to Health Canada’s guidelines and regularly reviewing and updating FPS documents, manufacturers can maintain product integrity, comply with regulations, and ensure the ongoing safety and quality of their NHPs. 

Source Nutraceutical, Inc (SNI) helps brands establish compliant specifications, identify appropriate testing parameters, and support finished product testing for quality, potency, purity, microbial limits, contaminants, and stability. Our team helps ensure your FPS and testing package are aligned with Health Canada expectations, your product licence application, and market readiness requirements.

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    What Are Finished Product Specifications (FPS) for Natural Health Products (NHPs)? 

    Finished Product Specifications, or FPS, are the quality standards a Natural Health Product must meet before it can be released for sale in Canada. For NHPs, an FPS defines the required tests, methods, tolerance limits, and acceptance criteria used to confirm that the finished product meets Health Canada expectations for quality, safety, and consistency.

    A compliant FPS typically addresses the product’s physical description, medicinal ingredient identity, quantity or potency, purity, microbial limits, chemical contaminants, ingredient-specific test parameters, dosage form requirements, and stability. Health Canada’s Quality of Natural Health Products Guide confirms that product specifications are a core quality requirement and that licence holders are responsible for ensuring their NHPs meet established specifications.

    Are Natural Health Products (NHPs) Regulated in Canada? 

    Yes. NHPs are regulated by Health Canada under the Natural Health Products Regulations. Before an NHP can be legally sold in Canada, it must be assessed and licensed by Health Canada’s Natural and Non-prescription Health Products Directorate (NNHPD) and assigned either a Natural Product Number, or NPN, or a DIN-HM for homeopathic medicines.

    The NHP licensing process requires applicants to demonstrate that the product is safe, effective, and of high quality. FPS preparation is a key part of this quality framework because it shows how the finished product will be tested, controlled, and released against defined specifications.

    Can I Sell a Natural Health Product Without an FPS?

    No. An NHP cannot be legally sold in Canada unless it has a valid product licence, and product specifications must be established to support that licence. However, whether the FPS must be submitted with the Product Licence Application (PLA) depends on the application class.

    For Class I applications, Health Canada states that applicants do not need to submit FPS with the PLA or Class I amendment application, but they must establish the FPS, keep it compliant with the Quality of Natural Health Products Guide, and provide it to Health Canada upon request. For Class II and Class III applications, Health Canada’s prior guidance stated that FPS is required as part of the submission, but this requirement has been removed in the most recent June 2026 update.

    What Happens If an NHP Does Not Meet Its FPS?

    If an NHP does not meet its FPS, the batch may be considered non-compliant and should not be released for sale until the issue is assessed and resolved. Common FPS failures may involve assay results outside the accepted tolerance range, failed microbial testing, contaminant concerns, missing identity confirmation, or stability results that no longer support the labelled expiry date.

    In practice, an FPS failure may trigger a quality investigation, corrective and preventive action, batch rejection, additional testing, product hold, import concerns, or post-market compliance action. This is why the FPS should not be treated as a paperwork exercise. It is part of the product’s quality control system and should reflect testing that can be scientifically justified, consistently performed, and supported by records.

    How Do You Develop an FPS for a Natural Health Product? 

    Developing an FPS starts with understanding the finished product formulation, dosage form, medicinal ingredients, non-medicinal ingredients, label claims, and intended shelf life. The FPS should define the quality attributes that must be controlled before the product is released and throughout its lifecycle.

    Key steps include identifying the required quality parameters, selecting appropriate validated test methods, establishing scientifically justified acceptance criteria, confirming whether testing occurs at the raw material or finished product stage, and documenting any rationale where testing is not performed or where alternative methods or limits are used. Health Canada’s FPS Form User Guide notes that FPS information includes medicinal ingredient quantity, potency where applicable, tolerance limits, identity testing, test methods, and general and ingredient-specific quality parameters.

    The FPS should also align with the Product Licence Application (PLA), product label, Certificates of Analysis (COA), stability data, and quality release procedures. Where recognized pharmacopeial methods exist, such as USP, BP, or Ph. Eur., they should be considered. Where alternate or in-house methods are used, the rationale should be scientifically supported and documented.


    The content on this website, including information presented in this post, is provided for general informational purposes only and does not constitute legal, regulatory, or professional advice. While efforts are made to ensure accuracy, laws and regulations vary by jurisdiction and may change over time. Readers should not rely on this information as a substitute for advice from qualified legal or regulatory professionals. We disclaim any liability for actions taken based on this content, and users are encouraged to seek guidance specific to their circumstances.

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