NMN Product Buyer’s Guide (updated May 2024)

How To Find High Quality NMN

An image of the site's  Senior Editor - Sally Harper.
  Sally Harper
  Senior Editor
  Health & Wellness Advice

The secret to eternal youth may still be beyond us but science has uncovered a new way of keeping cells young for increasing longevity and health. The secret: NMN. This unique super-nutrient benefits every cell in the body and provides anti-aging benefits. NMN has been found to support DNA repair, improve insulin sensitivity, boost metabolism and fat-burning, increase energy, promote blood circulation, preserve memory, and prevent physical and cognitive decline.

Whether you’re looking to stop the clock on aging or just trying to take better care of your health, NMN is the answer. If you don’t know what to look for, you might end up purchasing a cheap fake or low-potency supplement which wastes your money and leaves you disappointed. To prevent this from happening, we carefully examined the product available on the market to determine which use clinically-proven ingredients and which are dishonest gimmicks. Now that we’ve done all this research, it only seemed right to share it with others. 

5 Things To Look For In An Effective NMN Supplement

For optimal results, every NMN supplement should:

  • Provide a potent serving of 500mg NMN for optimal health benefits.
  • Contain high purity NMN. Some even have over 99% purity which is amazing.
  • Not be temperature-sensitive so that it will maintain stability.
  • Contain a thermogenic ingredient, such as BioPerine®, to enhance nutrient absorption.
  • Be manufactured in an FDA certified laboratory that adheres to the current Good Manufacturing Practices (cGMP).

What We Uncovered

With a little research, we were able to spot those that were out there to cash in on the latest trend versus the products that we consider to be high-quality and effective.

  1. In short, many NMN supplements are not 100% certified for purity and often include unnecessary ingredients that provide no benefit whatsoever.
  2. What’s more, some formulas do not contain the same potency as they claim on their labels and many companies even hide their labels or supplement facts to prevent consumers from better understanding what is contained in the formulas.

Some companies think that sticking a label on their bottle with the word ‘NMN’ is enough to make consumers want to buy their product, even if there is no justification for why the product should work. Unfortunately, many consumers fall for this scheme and are later disappointed by a lack of results.


Our Research

Our research identified key areas that we felt raised concerns when purchasing an NMN supplement. With so many products out there, we felt that we needed clear parameters as to what to look out for when investing in an NMN product.

  • Will it be effective? This is perhaps the main concern for consumers. After all, why waste your money on something that is useless? To determine which products we could rate as beneficial, we looked to see if they contained the correct ingredients, how potent they were, and their grade of purity. Consumers need to be aware that there is a precise science to creating an effective formula.
  • Will it be too expensive for me to purchase? Our research uncovered many manufacturers selling NMN supplements for well over $100. People often think that by paying more, they will get better quality. This is not always the case. Don’t risk your hard-earned money on something that has a price which is over inflated and unrealistic.  
  • Is the company open and transparent? Manufacturers should be transparent and open, providing you with as much information and guidance as they can. You need to be consumer savvy in order to determine which are the best manufacturers to purchase products from and which are not worth your while.

Finding Effective, Quality NMN Supplements

There are several key elements to look out for that can pretty much guarantee a product’s authenticity.

  1. Monitoring By A Third Party: There are organizations that will independently monitor and track the reputation of a company and assess their customer satisfaction levels. A company’s reputation is incredibly important within the health industry. Make sure you select a top provider, one that has an impeccable reputation and is backed by an independent third-party monitoring organization.
  2. 100% Money-Back Guarantee: Many companies offer you a money-back guarantee if their products do not bring the results that you are looking for. Some are better than others. Choose a company that has a solid satisfaction guarantee. A strong guarantee demonstrates a manufacturer’s confidence that their product will deliver the desired results.
  3. External Testing: This is not the same as a monitoring company. Third-party testing substantiates and verifies the quality of the manufacturer’s product. It can be very expensive for manufacturers to undertake and even disqualify entire shipments of products that don’t reach the correct standards. That said, when manufacturers don’t have independent quality control and testing, there is no way of knowing if their products are effective, or indeed, safe.

Our Research Results

Thorough research takes time and money, which most people don’t have an endless supply of. So we did the work for you – saving you both!

An effective NMN supplement should contain top quality, clinically-tested NMN in a significantly potent dose for optimal effect. The higher the purity and stability, the better. Additionally, we have found that a bioavailability enhancer, such as BioPerine®, can increase nutrient absorption and deliver better results. We also looked at certification to ensure that the supplement was manufactured in a safe way and using safe ingredients.

Most products failed to pass our specific criteria.

There are some manufacturers who actually include some good ingredients in their formulas. However, they fail when they weaken the potency by adding an unnecessary blend of useless ingredients. Other manufacturers simply failed by using a weaker potency of certain ingredients than what has been proven effective in scientific studies. Others filled their pills with binders, additives, or preservatives. All but a few of them avoided quality control testing.

We are very confident in the brands that we did pick. Given our stringent parameters and reasons for choosing our top products, we are sure our top picks will help you achieve the results you are looking for.

Why Did We Select Our #1 Choice As Our Top NMN Supplement?

Our top pick not only met all of our strict criteria for a quality NMN supplement, but it also beat it!

Look at what it contains:

  • A potent 500mg serving of NMN– Double the amount of most products.
  • Patented, Clinically-Researched NMN –  The highest purity NMN that is clinically-studied.
  • Stable NMN – Many other NMN supplements cannot be stored at room temperature.
  • BioPerine®– No other formulas contain this beneficial ingredient that boosts absorption for better results.
  • GMP certification – Standard certification that many products fail to obtain. 

Our Top Pick For An NMN Product

We think you will agree that our top choice stands above and beyond the competition. Approved Science NMN is a top quality product manufactured by a company with an excellent reputation that uses external independent monitoring and testing. Combine that with an incredible money-back guarantee policy and this is undoubtedly a solid pick for our #1 choice.

NMN Report

Rating: Excellent


Money Back Guarantee
Consumer Feedback
Company Reputation

Editor’s Choice

Approved Science NMN

If you are looking to improve your overall health and help slow down the effects of aging, then Approved Science NMN is something that deserves your undivided attention. Of all the Nicotinamide Mononucleotide supplements currently available on the market, this NMN is the one that deserves a closer look and very likely, the one that will change your life!

It contains a patented, clinically-tested NMN, the highest purity, most studied, stable NMN on the market. It also provides an impressive 500mg serving of NMN which is one of the highest dosages offered and optimal for achieving healthier, better functioning cells. In addition to the NMN, this product contains BioPerine® which increases nutrient absorption and maximizes results. It does not contain any additives or preservatives and is totally 100% safe to use with no long-term side effects.

Quality: Approved Science NMN is manufactured in an FDA registered lab and contains high-grade, natural, clinically-verified ingredients that are GMP certified.

Reputation: Approved Science’s reputation is top quality. They are well known in the industry and an established company that provides great customer service, secure and easy checkout as well as prompt, efficient delivery. This manufacturer has several third-party monitoring services, including buySAFE, Norton, and Trustee, as well as an A+ rating from the quality monitoring company QualityTrusted. Approved Science’s commitment to the health industry and consumers is considered to be excellent.

Money-Back Guarantee: Every item sold is supported by a 60-day 100% money-back guarantee. Such guarantees from manufacturers show strong confidence in their products’ ability to deliver results. Great news for consumers!

Bottom Line: If you are looking for a product that ticks all the boxes for an effective NMN supplement from an established reputable company with an excellent money-back guarantee, this is the supplement for you.

It would be good to note that, due to high demand, Approved Science NMN is often sold out. To avoid having to back order, don’t hesitate to make that purchase when you see it in stock.

See The Full Review


Rating: Good



ForestLeaf NMN

Promoted as pharmaceutical grade NMN to help promote cellular resilience, raise NAD+ levels, increase energy, and boost metabolic and brain function, ForestLeaf NMN is our next product up for review. This product offers a small dosage of 250mg NMN per 2 capsule serving. Despite the small dosage, we found a lot to like about this product.

When reviewing this product, we were pleased to see that it is made in the USA in an FDA approved facility that has GMP certification. We appreciated that this product is formulated using vegetarian capsules and undergoes testing throughout the manufacturing process. Furthermore, this product is 3rd-party tested for purity.

ForestLeaf claims to back this product with a 60-day 100% money-back guarantee but we were unable to find details on the process. If we didn’t know that there is a better product out there with the highest quality NMN, we might have been willing to settle for this product. Continue reading our full review to see how this product stacks up compared to our top pick for NMN.

Click here to read the full review


Rating: OK


Jarrow Formulas NMN

Jarrow Formulas NMN claims to put science first. Since 1977, Jarrow Formulas has been producing health supplements. It is certified GMP compliant and employs 3rd-party testing to ensure their products are safe. But do these qualifications justify the high price?

Each bottle contains 60 tablets which is 60 servings of 125mg. As we’ve established, this is a very low serving and we don’t anticipate it will be very effective. You’d have to take 4 pills a day to reach a 500mg serving, meaning you’d need 2 bottles per month. 

This product is backed by a 60-day satisfaction guarantee but it has limitations. The guarantee can only be claimed if less than a month’s worth of dosage has been taken, but as discussed above, a single bottle contains less NMN than you’d need in a month. Our main issue with this product is that it’s grossly overpriced and doesn’t even contain an NMN which offers the highest purity and stability. Continue reading our full review to see what this product has to offer. 

Click here to read the full review

What You’ll Discover:

Which NMN supplement is the BEST BUY and comes with a great GUARANTEE!
Which formula and ingredients are the most EFFECTIVE and work the fastest?
How NOT to get ripped off! BE AWARE of poor quality and cheap products.

Top 6 Items to Consider:

  1. Ingredients
  2. Cost Per Serving
  3. Product’s Testing Results
  4. Company’s Reputation
  5. Consumer Reviews
  6. Return Policy & Satisfaction Guarantee

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