Obtaining a Natural Product Number (NPN) is a critical step for bringing a Natural Health Product (NHP) to the Canadian market. While Health Canada provides multiple licensing pathways, many companies experience significant delays, requests for additional information, or outright refusals due to avoidable application deficiencies.
Whether you are launching a dietary supplement, vitamin, mineral, herbal product, probiotic, or traditional medicine, understanding the most common reasons Health Canada rejects NHP applications can save your company considerable time, money, and frustration.
This guide outlines the most frequent licensing challenges and provides practical strategies to improve your chances of obtaining an NPN successfully.
Understanding Health Canada’s Product Licensing Process
Before a Natural Health Product can be sold in Canada, most products must receive a product licence under the Natural Health Products Regulations.
As part of the review process, Health Canada evaluates:
- Product formulation
- Medicinal ingredients
- Recommended use or purpose
- Dosage information
- Safety profile
- Risk information
- Supporting evidence
- Product quality
Applications that fail to meet regulatory requirements may receive information requests, deficiency notices, or refusal decisions.
Reason #1: Unsupported Product Claims
One of the most common reasons for application rejection is the inclusion of claims that are not adequately supported by evidence.
What Health Canada Looks For
Health Canada expects claims to be supported by:
- Recognized monographs
- Clinical studies
- Published scientific literature
- Traditional use references
- Authoritative pharmacopoeias
Examples of Acceptable Claims
- Helps support immune function.
- Helps maintain healthy bones.
- Source of antioxidants.
Examples of Problematic Claims
- Cures arthritis.
- Reverses diabetes.
- Prevents cancer.
Disease treatment or cure claims generally require significantly higher levels of evidence and may cause the product to be classified differently.
How to Avoid This Issue
- Align claims with available evidence.
- Use existing Health Canada monographs whenever possible.
- Conduct a regulatory claims assessment before submission.
Reason #2: Incorrect Product Classification
Many companies begin preparing an NPN application before determining whether their product is actually regulated as an NHP.
Why Classification Matters
Products sold in Canada may be regulated as:
Natural Health Products
Examples:
- Vitamins & Minerals
- Herbal supplements
- Probiotics
- Skin creams with therapeutic claims
Cosmetics
Examples:
- Moisturizers
- Soaps bars or liquid
- Shampoos and conditioners
- Skin creams without therapeutic claims
Medical Devices
Examples:
- Diagnostic kits
- Blood glucose monitors
- Certain wound care products
Drugs
Examples:
- Prescription products
- Products intended to treat serious diseases
Submitting a product under the wrong regulatory pathway can result in significant delays or rejection.
Best Practice
Conduct a product classification assessment before investing resources into licensing activities.
Reason #3: Ingredient Compliance Issues
Ingredient-related deficiencies are among the most common problems encountered during review.
Common Ingredient Problems
Ingredient Not Permitted
The proposed ingredient may not have an established history of safe use or may not be acceptable under current regulatory frameworks.
Incorrect Ingredient Nomenclature
Scientific names, plant parts, or ingredient descriptions may not align with accepted standards.
Dosage Concerns
Ingredient levels may exceed recognized safe limits.
Incomplete Ingredient Information
Missing details regarding ingredient source, potency, or standardization can trigger review concerns.
How to Avoid This Issue
- Verify ingredients early.
- Review applicable monographs.
- Confirm ingredient nomenclature.
- Conduct safety assessments where required.
Reason #4: Inadequate Supporting Evidence
Evidence deficiencies are a major contributor to licensing delays.
Health Canada must be satisfied that:
- The product is safe.
- The product is effective for its intended use.
- The recommended conditions of use are appropriate.
Common Evidence Problems
Poor Quality Studies
Studies may be outdated, poorly designed, or irrelevant.
Evidence Does Not Match the Claim
Supporting literature may not adequately support the proposed health benefit.
Missing Traditional Use References
Traditional claims require appropriate historical documentation.
Incomplete Evidence Packages
Applications lacking sufficient evidence frequently receive information requests.
Best Practice
Develop a comprehensive evidence strategy before filing.
Reason #5: Missing Risk Information
Many applications fail because required risk information is incomplete.
Common Missing Elements
- Contraindications
- Cautions and warnings
- Known adverse reactions
- Drug interactions
- Duration of use restrictions
Risk statements are essential for protecting consumers and ensuring informed product use.
Best Practice
Review applicable monographs and scientific literature carefully to identify all required risk information.
Reason #6: Label Compliance Deficiencies
Even if the formulation is acceptable, label-related issues can delay approval.
Common Labeling Problems
Inaccurate Claims
Claims that differ from submitted evidence.
Missing Mandatory Information
Required information may be absent or incomplete.
Inconsistent Product Information
Differences between application data and label content.
Unapproved Marketing Language
Promotional wording that exceeds authorized claims.
Best Practice
Conduct a comprehensive label compliance review before submission.
Reason #7: Poor Application Preparation
Many refusals result not from the product itself, but from errors in application preparation.
Common Administrative Errors
- Missing documentation
- Incomplete application forms
- Data entry mistakes
- Incorrect ingredient quantities
- Formatting inconsistencies
These seemingly minor issues often create significant review delays.
Best Practice
Implement a quality review process before submission.
Reason #8: Failure to Leverage Health Canada Monographs
Health Canada has developed numerous monographs that streamline the licensing process.
Applications that align with recognized monographs generally experience fewer complications than products requiring extensive evidence assessments.
Benefits of Using Monographs
- Faster review
- Reduced evidence burden
- Greater regulatory certainty
- Improved approval probability
Companies that ignore available monographs often create unnecessary regulatory challenges.
How to Improve Your Chances of NPN Approval
Companies can significantly improve licensing outcomes by:
Conducting Early Regulatory Assessments
Evaluate classification, ingredients, and claims before product development is finalized.
Reviewing Ingredients Thoroughly
Confirm acceptability, dosage levels, and supporting evidence.
Developing a Strong Evidence Package
Ensure claims are fully substantiated.
Performing Label Compliance Reviews
Address potential deficiencies before submission.
Utilizing Existing Monographs
Leverage established regulatory pathways whenever possible.
Working with Experienced Regulatory Consultants
Professional regulatory support often reduces delays and improves approval success.
The Business Impact of Application Rejections
A rejected or delayed NHP application can result in:
- Lost revenue opportunities
- Delayed product launches
- Increased regulatory costs
- Supply chain disruptions
- Investor concerns
- Competitive disadvantages
For growing health product companies, regulatory readiness is not simply a compliance issue—it is a business strategy.
How GNHP Consulting Helps Companies Navigate NHP Licensing
At GNHP Consulting, we help companies avoid common licensing pitfalls and accelerate market access through:
- Product classification assessments
- Ingredient reviews
- Regulatory strategy development
- Evidence evaluations
- NPN application preparation
- Label compliance reviews
- Health Canada submission support
- Deficiency response management
Our team works with Canadian and international companies seeking efficient and compliant access to the Canadian marketplace.
Ready to Improve Your Chances of NPN Approval?
Navigating Health Canada’s licensing requirements can be complex, but avoidable mistakes should not prevent your product from reaching the market.
Whether you are developing a new supplement, reformulating an existing product, or responding to regulatory questions, GNHP Consulting can help you build a strong licensing strategy from the outset.
Contact GNHP Consulting today to discuss your Natural Health Product licensing needs and discover how proactive regulatory planning can reduce delays and support long-term success.