FDA Moves to Stop Sales of NMN Supplements – RENUE BY SCIENCE – Bioavailable NAD+ Boosters

FDA Moves to Stop Sales of NMN Supplements

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Amazon announced it is banning all NMN sales, starting on March 13th, 2023. They advised sellers of NMN they can no longer sell the anti-aging ingredient as a dietary supplement.

In an email to a NMN sellers, Amazon cited an FDA decision “that NMN is no longer considered a dietary supplement” but rather is deemed “a drug, or drug ingredient, that requires FDA approval.”

This isn’t the first time Amazon has taken action to remove from its platform a popular dietary supplement that FDA determined was barred in natural products due to being either approved or investigated as a drug before it was marketed in a supplement. Amazon did so with NAC (N-acetyl-L-cysteine), which was later the subject of a lawsuit filed by the Natural Products Association against FDA in U.S. District Court in Maryland.

We believe this story will eventually end up as the earlier skirmish over NAC, and NMN will be returning to Amazon, but it is not assured. It is possible the FDA will decide to fight harder this time and stop all sales from every platform.

Full details & updates on Amazon’s NMN Ban

Jan. 23, 2023

The Natural Products Association (NPA) requested to open a docket on β-NMN (beta-nicotinamide mononucleotide), but the FDA denied that request.

The FDA concluded that interested parties already had the chance to submit relevant information to them. They reiterated their statement that NMN is not considered a dietary supplement.

Dec. 7, 2022

Manufacturers have received letters from the FDA directing that they stop production of NMN dietary supplements.

If not resolved soon, expect to see more products showing out of stock on our website and others.

Dec. 3, 2022

Meetings were held last week between the FDA and NMN manufacturers and retailers, lead by Dan Fabricant of NPA and Matt Anania of Cellmark.

Some progress was made as new information was presented to the FDA regarding the history of NMN sales, but there was no resolution.

Retailers have not been directed to stop selling yet, and we will ship any orders received before that happens,  if it ever happens. (This does not apply to our new NMN Pet products, as they are not dietary supplements). 

We will continually update this page with new information, so check back for updates.  We will inform everyone on our mailing list of any notable changes, so if you are not already subscribed, sign up here.

The FDA May Move to Stop Sales of NMN as a Dietary Supplement

The issue is, a product that is already being investigated for use as a drug, cannot then be sold as a dietary supplement (natural product).

New Dietary Ingredient

A New Dietary Ingredient (NDI), allows a natural product to be sold as a dietary supplement. The FDA had previously approved an NDI for NMN, allowing it to be sold as a dietary supplement. But, in an unprecedented action, they revoked the NDI on October 11, 2022.

A quote from that notice: “NMN is excluded from the dietary supplement definition under section 201(ff(3)(B)(ii) of the FD&C Act (21 U.S.C. § 321(ff)(3)(B)(ii)) and may not be marketed as or in a dietary supplement.”

NMN Being Investigated For Use As A Prescription Drug

The FDA stated their reason for excluding NMN from being classified as a dietary supplement is due to it being investigated as a drug. Dr. David Sinclair is a co-founder of Metro International Biotech LLC, a pharmaceutical company that has been trying to get MIB-626 classified as a drug.

MIB-626 is a proprietary formulation and a version of β-NMN Beta-Nicotinamide Mononucleotide (Beta NMN). Beta NMN is the form of NMN that is commonly sold by companies in the U.S. and abroad. 

Situation Similar to Recent Rulings on NAC

A similar ban was enacted by the FDA on a supplement called N-acetyl-L-cysteine (NAC), around July of 2020. The FDA deemed that it was no longer a supplement or dietary ingredient because it was first authorized for investigation as a new drug before it was sold as a supplement.

Manufacturers, Citizens and Nonprofits Fought Back

Numerous groups, nonprofits and manufacturers fought back and also filed citizen petitions and a lawsuit against the FDA. The Natural Products Association (NPA), the Council for Responsible Nutrition (CRN) and the American Herbal Products Association (AHPA), all fought back against the FDA’s NAC ruling. Citizen petitions were filed, along with a lawsuit filed by the NPA, December 6, 2020. The groups stated:

  • they believed that banning NAC was unlawful because they were said to be attempting to “retroactively” apply the FD&C’s Drug Exclusion Clause
  • they said NAC was marketed in the U.S. food supply since 1991, before the FD&C Act was enacted into law, therefore it meets the definition of a dietary supplement
  • they said that NAC drugs that were approved in 1963 were not administered orally, so they called into question as to whether or not the FD&C Act even applied to this situation

Outcome of the FDA Banning NAC

On November 4th, 2022, the lawsuit was dismissed without prejudice. And, although the FDA said NAC does not meet the definition of a dietary supplement, they adopted a policy of “enforcement discretion” in a final guidance, essentially allowing companies to continue selling NAC in the U.S.

We Hope For A Similar Outcome with NMN

We may receive a similar “discretionary exclusion” as happened with NAC, which could allow NMN to continue being sold as a dietary supplement in the U.S.

Metro International Biotech’s Letter to the FDA

Corporate counsel with Metro International Biotech sent a letter to the FDA on December 1st, 2021, regarding the FDA’s ban on NAC.

Food, Drug & Cosmetic Act and Supplement Bans

If three criteria are met with the Federal Food, Drug and Cosmetic Act (FDCA), then they can exclude NMN from being used as a supplement in the U.S.

  1. The ingredient must be authorized for investigation as a new drug.
  2. Substantial clinical investigations must have been instituted.
  3. The clinical investigations must have been publicized.

If the product was previously marketed as a supplement or food prior to authorization for investigation as a new drug, then it does not cause an exclusion, even if the three criteria are met.

Investigational New Drug Mystery Dates & Lack of Transparency

The FDA does not disclose the actual date of when a company submits an investigational new drug application (IND). The date is not disclosable until there is approval of the new drug application (NDA), which references the IND.

According to the FDA, it may take 30 days after they receive the application for an IND to take effect. Or, it can occur earlier if the FDA notifies the company that clinical investigations may begin.

At this time, it is unknown as to when Metro International Biotech submitted their IND application.

NMN Is Still Available For Sale At This Time

Although we believe this is likely to turn out ok and everyone can continue to benefit from NMN products, this has caused a massive disturbance since news started to leak out about this on Nov 11th.

We have been hit with a flood of orders from customers concerned they might not be able to purchase NMN in the future.

As a result, we have now run out of our Liposomal NMN that we received a shipment of just last week.

We have good supplies of other NMN products, but can’t say how long those will last if the panic buying continues or accelerates.


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