NMN Product Buyer’s Guide (updated May 2024)

Approved Science NMN Review



Customer Service
Value Rating
Customer Rating
Overall Rating 
Our research has shown that this manufacturer has created a product born from science and clinical data. We found that this product provides the highest purity patented NMN, with added BioPerine® – which is the most effective for optimal health benefits. This top quality formula provides the ideal dosage of NMN to support healthy aging, reduce the risk of age-related diseases, improve insulin sensitivity, promote blood circulation, and boost energy, metabolism, and fat-burning. We like that it offers a 60-day 100% money-back guarantee if you are not happy with the results.  

Why do we recommend Approved Science NMN?

Main Benefits:

  • Contains 2 patented ingredients: A high-quality NMN that is clinically-tested and BioPerine®.
  • Contributes to the prevention of physical and mental decline that occurs with age.
  • Provides the optimal dosage of 500 mg NMN.
  • High stability allows it to be stored at room temperature without losing potency.  
  • Elevates NAD+ level to support cell health.
  • Supports the natural maintenance of DNA.
  • Improves cases of insulin resistance for better blood sugar levels.
  • Promotes blood circulation and increases energy levels.
  • Affects metabolism to enhance the breakdown of fats.
  • Does not contain any preservatives, artificial colorings, hormones, or unnecessary ingredients that may dilute the efficacy of the product.

Additionally, we found many supportive consumer reviews from users who had experienced excellent results, some within as little as a week. Its daily suggested serving is the optimal potency as recommended by doctors for effectiveness and the formula is supported by extensive clinical research trials and studies. Approved Science’s customer service is second to none and provides excellent support and help. Furthermore, it offers an excellent 60-day money-back guarantee if customers are not happy with their results.


Approved Science NMN delivers all the much-praised health benefits of NMN but in a more bioavailable and efficient way. This product’s formula utilizes the highest quality, patented, clinically-studied ingredients. The NMN employed has over 99% purity and has fewer impurities than most other NMN supplements on the market. The NMN used in this product is stable and less likely to be damaged from air moisture and temperature. Furthermore, the production is optimized for bioavailability and allows for controlled release of NMN into the body. In addition to containing NMN that is optimized for absorption, Approved Science NMN also contains BioPerine® which is a patented bioavailability enhancer.

It is important to note that not all NMN supplements are created equally. The dosage makes a huge difference in how effective it will be at producing positive health benefits. Approved Science NMN contains 500 mg of NMN in each daily serving which is higher than many other supplements that we came across during our research and leads us to believe it will be more effective at delivering health benefits. NMN is converted into NAD+ inside the cells and helps to maintain cell health, repair DNA, convert sugar into energy, and prevent both physical and mental decline for anti-aging benefits.

What we really like is that Approved Science NMN is made by a company that consistently uses clinical studies as a benchmark for the dosage of all their supplements. There is also a 100% money-back guarantee which can be claimed by speaking to their customer service agents who are real people and not frustrating robots!

Additionally, you will not find any ingredients in Approved Science NMN that don’t belong there. There are no added fillers, binders, additives, or preservatives. There are so many products out there that do not fall within the realm of high standards, offering artificial alternatives and all sorts of extras inside their formulas. It is a relief to be able to recommend a company that manufactures such a unique, well-researched product.

To summarize, Approved Science NMN uses top-quality natural ingredients, provides awesome results, has a caring customer support team and a great price. From what we saw, without a doubt, this is an extremely good product.

Quality Assurance

Over the last few years, we understand how consumers have grown skeptical of health supplements and claims of “anti-aging”. This simply comes down to shady companies providing useless formulas that contain unrelated and useless ingredients or that add fillers or binders to their products. The active ingredients are what deliver results, so when you see a long list of inactive ingredients, you should be wary. Often, these ingredients are not pure, or have not been tested for quality and have no scientific validity as to why they have been included in the formulas. Not only is this irresponsible, but often quite dangerous since there is frequently a lack of understanding when it comes to these ingredients. Truth being, there is absolutely no reason why anything artificial should be added. Natural and pure is the best. If the ingredients are in their natural form, side effects or negative interactions are unlikely to be experienced.

We were very happy to discover that Approved Science NMN is manufactured in an FDA-registered facility. Moreover, it is cGMP recognized and complies with the US Pharmacopeia’s standards for quality and purity. This suggests that Approved Science takes what it does very seriously, and strives to keep its products safe, natural, and effective – a mentality that we totally appreciate.


Approved Science NMN comes at an affordable price with some excellent multiple purchase deals, allowing you to save big. Also, this company is staunchly against any auto-ship programs, as they can be nearly impossible to cancel. This policy further supports the evidence that Approved Science is a top-quality company.

Orders are shipped within 24 hours, with the exclusion of any orders placed on weekends and holidays. Unlike other companies who often have embarrassing slogans or logos on the package, Approved Science sends discreet packages with no identifying or marks on the outside. Furthermore, this company provides a 60-day risk-free money-back guarantee. If you are not 100% happy with the results, you are able to return the product and receive a full refund. That shows strong confidence in its product and we totally support that kind of guarantee.

In Conclusion

When people are searching for a good NMN product, they may not realize that there is more to an effective supplement than simply containing the right ingredient. Purity, potency, and dosage matter.  Additionally, there are other external elements to bear in mind, such as third-party testing and comprehensive customer reviews that give us a great indication of how the product really works.

Of all the products that we reviewed, across all parameters, none compared to Approved Science’s NMN which provides an optimal dosage of a patented, clinically-tested NMN combined with BioPerine®. If you are looking for a top-quality formula backed by research and scientific data that is an effective, long-term solution to improve your overall health and prevent age-related physical and mental degeneration then you’d be hard pressed to find anything better than Approved Science NMN.

Approved Science NMN
ForestLeaf NMN
Jarrow Formulas NMN
Syrilin NMN 9000
Contains a high purity, patented NMN
Provides a 500mg daily serving
Contains BioPerine® for increased absorption
GMP Certified
Third-party tested for purity
Vegetarian Capsules
Money-Back Guarantee

Read on to see what their happy customers are saying

“I couldn’t believe the price on Approved Science NMN. My old NMN supplement offered 250 mg a day and was almost twice the price. For such top notch NMN, Approved Science has an amazing price. I can feel the difference now that I made the switch and I’ll be staying with Approved Science for as long as I live.”  – Derek Livingston

“After a recent reminder about mortality I’ve decided it’s time to seriously take care of myself and do what I can for longer longevity. I like to say that I’m trading my m&m for NMN. I’m making healthier choices and I feel really great about knowing that my body has the NMN to keep me healthier for longer.” – Michelle Wallis


“My husband and I are in our late 60s and we’re not planning on getting old any time soon. Approved Science NMN has helped us both to have more energy and more fun with life. Damien’s blood sugar has even improved and I’ve shed a few pounds! We look forward to taking this supplement for a long time to come.” –  Aitana Suarez   

“I love asking new people to guess my age. Would you believe it if I told you they were always off by at least 10 years? I look and act younger than my actual age and it’s all thanks to Approved Science’s NMN and Collagen. ”  – Carol Donnelly


“I used to be a college gymnast and I decided for my 32nd birthday that I wanted to get back in the game. Approved Science NMN has helped with my energy levels for workouts and helped me recover faster. I’m excited to see the long term benefits. Huge fan -5 stars from me.”  – Marcus Marino


“My mother has been talking about NMN for years but she wasn’t sure which company to trust after she ordered a cheaper NMN that didn’t actually contain any NMN and caused an adverse reaction. She was over the moon when Approved Science started selling NMN and instantly bought as much as she could. She’s really happy with her purchase and I might even allow her to convince me to buy some myself” – Sharlene Collins         

“My life changed when I met a nice lady who is the same age as me and is healthier, dare I say sharper, and more active than I am. I just knew she was doing something right and I wanted to be like her. To my surprise, she revealed the secret to her health was three words: Approved Science NMN. ” – Myrtle Power

FAQs about Approved Science NMN:

How does Approved Science NMN work?

The bio-absorbable blend of a patented NMN and BioPerine® allows the NMN to be easily absorbed by cells and converted into NAD+ which is a molecule that is involved in various processes in the body. NAD+ promotes healthy aging and helps to prevent neurodegenerative disease. It also aids DNA repair, energy synthesis, fat-burning, blood circulation, and insulin sensitivity. The human body cannot function without NAD+ and begins to deteriorate on a cellular level when NAD+  is decreased. Boosting NAD+ through the consumption of bioavailable NMN contributes to healthier aging and is believed to increase longevity.

Do all NMN supplements work in a similar way?

No, they do not. There are many companies that just ride the trends, producing inferior products with weak formulas in the wrong proportions. Many use incorrect ingredients, fillers, binders or even worse ingredients that can affect desired results, and even be dangerous.

What should I look for in an effective NMN supplement?

Every effective NMN supplement should:

  • Contain a potent 500 mg daily serving of NMN.
  • Contain high purity NMN at over 99% purity.
  • Be stable so that it doesn’t lose potency due to temperature changes.
  • Contain a thermogenic ingredient that enhances nutrient absorption.
  • Be manufactured in an FDA registered laboratory that adheres to the GMP guidelines.
  • Be third-party tested to ensure purity and safety.
  • Not contain any binders, fillers, additives, hormones, preservatives or artificial ingredients.

Are there any side effects noted when using this product?

Our research did not uncover any negative side effects when using this product. The ingredients that are contained within the formula of Approved Science NMN are all natural and pure. That said, as with any supplement, we always recommend consulting with a doctor if you are pregnant, breastfeeding, have an existing medical condition, or are taking any other medication.

What are the dosage instructions for Approved Science NMN?

The manufacturers of this product suggest taking 2 capsules per day, preferably before mealtime and with a glass of water. 

As with any supplement, always follow the recommended dosage instructions and do not exceed them as this poses health risks.

How long before I can see any results?

Results will vary for each person. For some, they will see changes almost immediately, for others it may take longer. It is different for each person. Other factors that affect results can include age, diet, and lifestyle so it is hard to say exactly. What you should look for are companies who offer a satisfaction guarantee. This suggests that they are confident that their products will deliver the desired results. And after all, if you don’t get the results you were hoping for you can always return the product. Approved Science offers a great money-back guarantee and awesome feedback on how well this NMN product works.

What price should I expect to pay?

The cost of products vary among manufacturers. Unfortunately, many are cheap, useless supplements that have been formulated without any science-based evidence to back them up. Some of these companies are selling their products for over $100 per bottle, which is very expensive. On average, the best supplements we found are selling between the $50-$60 price range. Often, when products appear cheaper, this is indicative of low quality or a low recommended daily serving, which will not bring the results you are looking for. Be aware. Read the labels.

Which NMN supplement should I buy?

As each person’s experience of a product is different, it is difficult to say specifically which one is the best. That said, based on several factors, we did like Approved Science NMN the most. We found that from the 50+ products that we looked at, Approved Science NMN had the best quality of ingredients, potency and strength, positive consumer feedback, and excellent customer service.

How safe is it to order over the internet?

Ordering NMN from Approved Science is safe to do over the internet. The manufacturer utilizes the latest encryption software to protect your credit card information and does not engage in shady schemes such as ‘automatic billing’ programs like many other companies do. They also deliver very efficiently and quickly, using discreet packaging.

Why should I choose Approved Science NMN?

 There are several reasons why we liked this product including purity of ingredients, customer service, satisfaction, and effectiveness. Its formula is backed by clinical studies and we feel it values consumers’ health above and beyond the profit margins.

Approved Science NMN is a great product that you can depend on. It has a well-researched formula with the right ingredients in the correct potency. And if that wasn’t enough, check out the customer reviews – they say it all. It counts when there are many happy customers clearly singing the praises of this trustworthy product who are highly loyal to this brand. We will summarize the key benefits one more time:

  • Contains 2 patented ingredients: A patented, clinically-tested NMN and BioPerine®.
  • Contributes to the prevention of physical and mental decline that occurs with age.
  • Provides the optimal dosage of 500 mg NMN.
  • High stability allows it to be stored at room temperature without losing potency.  
  • Elevates NAD+ level to support cell health.
  • Supports the natural maintenance of DNA.
  • Improves cases of insulin resistance for better blood sugar levels.
  • Promotes blood circulation and increases energy levels.
  • Affects metabolism to enhance the breakdown of fats.
  • Does not contain any preservatives, artificial colorings, hormones, or unnecessary ingredients that may dilute the efficacy of the product.

In addition to offering this doctor-formulated product, Approved Science provides excellent customer service, a solid 60-day money-back guarantee if customers are not happy with their results, and manufacturers all of its products in an FDA and cGMP recognized facility that complies with the standards for quality and purity outlined by the U.S. Pharmacopeia

The Bottom Line

We like this NMN because we feel that Approved Science is different. It is in it for the long haul. It has researched its ingredients well and produced a formula using only pure natural ingredients with a lot of clinical data to back them up. Approved Science offers what more companies should – an effective, affordable product supported by a real concern for the health of their customers. As an added bonus, Approved Science NMN has many happy testimonials to support our belief that this is a great product and a great company.

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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