VeriGMP Logo

The VeriGMP Guarantee

When you see the VeriGMP® icon on a product, please know that the product is manufactured in a facility that is both AUDITED and VERIFIED to be GMP compliant. Participating brands and products are listed here. 

VeriGMP guarantees that listed brands and products are manufactured in a UL and/or NSF certified factory. We encourage brands to display where their products are manufactured, both address and the name of the manufacturer. This provides additional safety and transparency. Learn how to verify VeriGMP with 100% certainty here.

PureNSM logo

The GMP Bluff

For those of us who read supplement labels, we have all seen the typical GMP icons that look fancy but don’t mean a whole lot. Like these “designer icons”.


GMP Bluff Logo

The above icons carry no guarantees of any compliance with GMP protocols! These are simply the opinions of the brand owner, who designs the labels. It’s advertising.


We estimate that about 80% of all products that claim “GMP Certification” are actually not manufactured in GMP certified factories. The two most common GMP certification organizations are NSF and UL. Neither of them allow brands to display their logo on their products even if they are made in GMP certified manufacturing facilities unless in some rare cases the brands can pony up tens of thousands of dollars per each production lot. This is why brand owners don’t have such an enormous incentive to contract with factories that go through with the enormous costs and efforts to maintain a GMP certification, so half of brand owners willingly choose factories that are not GMP certified – for a lower price of course. Many other brand owners get tricked into thinking they are contracting with GMP certified factories. 


NSF has made it easy for factories to bluff brand owners by issuing identical GMP certifications for a host of different services they offer! Factories receive the same certification for operating (a) Manufacturing Facility (b) Warehouse Facility and (c) Distribution Facility. This has caused lots of factories to obtain the inferior GMP certifications of operating a warehouse or a distribution facility and pretend to brand owners to be GMP certified as manufacturers. Don’t worry, we will tell you how to verify GMP status of manufacturers. 


For those brand owners that are honestly trying to hire the best possible and properly certified GMP certified manufacturers PureNSM offers a guide that anyone can download here: Pitfalls to Avoid and Questions to Ask Supplement Manufacturers (before you hire them)


Amazon and other platforms require GMP certification from an accredited 3rd party certification agency, like UL or NSF, however with loopholes like the ones provided by NSF it isn’t that easy or obvious for Amazon how to enact that. We hope this situation will improve shortly. 

Why is GMP Certification Important?

You don’t boil your supplements, do you? You don’t taste the capsules and tablets you swallow either. This is why it’s more important for factories that manufacture those items to follow GMP protocols. Furthermore many herbs are derived from roots that grow in countries that until recently did not regulate against leaded gasoline. This has caused the herbs to find their way into products sold worldwide to be contaminated by lead. Finally when you purchase herbal supplements you want them to be “for real”, meaning you want what is stated on the label to be what is actually in the product. Manufacturing is a complicated business. Please let me explain the pitfalls that can only be avoided if the supplements are made in a GMP certified facility. 

The Identity Crisis?

When you see the VeriGMP icon on your supplements, rest assured that 100% of all incoming botanical raw materials have been tested for identity using the most advanced ID testing methods available, abbreviated HPTLC. Not to be confused with another system used to analyze for potency called HPLC. 

We estimate that about 30% of the raw materials sold to manufacturers are adulterated. We know that the only way to protect the consumer from those adulterated herbal raw materials is to test them at the point of manufacture for identity and authenticity. For the inquisitive: HPTLC stands for High-performance thin-layer chromatography. HPLC stands for High-performance liquid chromatography.

PureNSM uses the HPTLC system from CaMag and has over 300 methods developed. HPTLC is considered by FDA to be better than DNA analysis because it does not rely on fragments of DNA that is frequently damaged when plants have been ground to powder. PureNSM analyzes both raw plant powders and extracts successfully and identifies species, plant parts and if the plant material has been extracted already.


Lab Test

Sourcing Pure and Potent Raw Material

Unfortunately the regulations governing raw material vendors for supplements are subject to a more relaxed (less stringent) regulation called 21 CFR 117 and not 21 CFR 111, which are stricter and govern supplement manufacturing facilities. FDA claims the 21 CFR 117 regulation needs to be less strict because they sell to several different industries, not only the supplement industry, such as foods, cosmetics, and pharmaceuticals. This shifts the burden of quality control of raw materials to the supplement manufacturers. This is exactly why it’s so important that they adhere to strict GMP protocols. 

Bugs in Your Supplements?

You don’t wash or boil most supplements; in fact, you swallow most whole. That’s precisely why it’s so important to only ingest trustworthy supplements. VeriGMP makes sure your supplements have passed the purity test with a battery of microbiological analytical methods. 

For the inquisitive: PureNSM uses the Soleris rapid microbiology systems, the traditional plate count methods in a BSL-2 laboratory and the 3M parafilm plate reader. It’s not possible to rely on one system alone and that is why we use all three. 


Test Lab

Heavy Metals in Your Supplements?

Heavy metals are not fun, they are found in food but also in supplements, especially supplements from roots. Heavy metals such as lead find their ways to plant materials from decades of use of leaded gasoline in India and other countries. For the inquisitive: PureNSM uses ICP-MS from Perkin Elmer.

Potency Check?

It’s important to analyze both raw materials and “finished-goods” for quality (identity, potency, purity). PureNSM tests for potency twice, once when we receive the raw materials and once when the product has been manufactured, at the end stage of manufacturing. This is the only way to make sure what is stated on the label is actually in the supplements. This is done with a variety of analytical instruments, HPLC being one of them.

Potency has a lot to do with overages, blend uniformity, particle size of ingredients, degradation of ingredients over time and the interaction of different ingredients with each other. It can become more complicated than expected because you are blending many tons of materials with the goal of getting a perfect blend into a capsule that is 500 mg.

For the inquisitive: PureNSM uses the HPLC system from Agilent, 1100 Series. In addition, PureNSM relies on lab partners such as Dyad and Eurofins. 


How to verify VeriGMP?

So the most important question is; how can you trust VeriGMP? The answer is simple. VeriGMP is a registered trade mark with the serial number of 90888949 of Oskar Thorvaldsson who is the same person who owns and operates both Nutritional Supplement Manufacturers, Inc. ( and a couple of smaller legacy brands; Bernard Jensen Products, LLC and Dr. Clark Store, Inc. ( You can visit with us at our factory and see our operations for yourself. Our address is listed below and with both UL and NSF. Click on the links below to verify the PureNSM certifications. In addition, PureNSM is a member of NPA.
  • You can verify our PureNSM NSF certification HERE.
    Search for us under Manufacturer Name Nutritional Supplement Manufacturers.
    Notice: PureNSM is certified by NSF as Manufacturers, not Warehouse or Distribution Facility like many other factories.
  • You can verify our PureNSM UL certification HERE.
    Search for us under Nutritional Supplement Manufacturers or PureNSM.
  • You can verify our PureNSM NPA certification HERE.
    Search for us under Nutritional Supplement Manufacturers or PureNSM.

What Our Happy Customers say

How‘re we doing? Give us a feedback.
It’s very important to us to improve your experiences, many thanks for your contributions.

Latest Blog Posts