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Firstly, What is NSF?

NSF stands for National Sanitation Foundation, which is the most respected independent audit within the global supplement manufacturing industry. Government regulatory bodies widely accept their standards, and it offers a benchmark for consumers to ensure the products they are purchasing meet the highest quality standards.

It was founded in 1944 to create a standard for food safety. Manufacturers, regulators, and consumers look to NSF international to develop public health standards and certification programs that help protect the world’s food, water, consumer products and environment.

NSF standards ensure supplement manufacturers are accountable for their products being safely manufactured and accurately labelled before distribution. This includes product testing, material analysis and extensive facility and equipment inspection. Every aspect of the development and production of a product is thoroughly evaluated as part of the certification process.  NSF incorporates and certifies existing International HACCP (Hazard Analysis Critical Control Point) and GMP (Good Manufacturing Practices) processes to ensure they meet FDA compliance.

What does NSF Certification mean for Supplement Factory?

NSF Certified Supplement Factory

Our clients trust us to deliver the highest quality of products and our NSF accreditation sets the high standards that we operate to.

The NSF audit looks at the following categories.

  1. Administration and Regulatory
  2. Quality Management
  3. CAPA
  4. Complaints
  5. Supplier Qualifications
  6. Product Safety
  7. Facilities
  8. Production and process controls
  9. Laboratory Controls
  10. Warehouse
  11. Distribution

On the 1st of September 2021 Supplement Factory undertook the 3-day annual NSF audit. After this intense audit, we are pleased to announce we have maintained our NSF GMP grade A accreditation for dietary supplements (compliance against FDA US Federal Regulation 21CFR111).

We are the only supplement manufacturer in the UK to achieve this. We are incredibly proud to have been awarded this consecutively for four years with an A gradethe highest grade a business can achieve!

This is an excellent result for our customers. The A Grade confirms that the Supplement factory complies with strict GMP (Good Manufacturing Practices), standards and procedures imposed by NSF.

We look forward to continuing this high standard of operation and maintaining the highest level of good manufacturing practices for our customers.

Why should supplement brands need to look for NSF certified manufacturers?

Let’s say you have a successful Supplement Business, you sell a wide range of supplements to loyal customers across the globe, from capsules to powders. Your brand is famous, and customers love your product. You rely on contract supplement manufacturers to produce, package, and ship your supplement products to the high standard your customers have come to expect.

Now, let’s imagine your manufacture says they comply with good manufacturing practices without any proof.

Would you trust them with your business, your brand reputation, and your customer?

The answer is probably no.

Uncertified manufacturers are a risk to your business and whilst they may offer cheaper alternatives, is the risk really worth it? It often comes down to how much you value your customers and the trust they put in you.

An internationally renowned third-party organisation like NSF removes the risk and that is why here at Supplement Factory we invest in the NSF audit process as we know how important your customers are to you.

NSF certification is not a one-time event.

The process involves regular on-site inspections of manufacturing facilities and routine re-testing of products to ensure they continue to meet the same high standards required to maintain certification over time.

If a manufacturer fails to meet one or more certification criteria for any reason, NSF will take enforcement actions including product recall, public notification, or de-certification.


Every supplement brand should look for NSF certified manufacturers if the product quality, brand reputation and customer loyalty are your priority.

As an NSF certified Manufacturer, the Supplement factory is transparent about our accreditation and stand by our promises.

If you have any questions regarding how we manufacture supplement products, please call us at 0330 311 2761, and we promise to help you through your manufacturing journey.