Legal status · United States
Is Nicotinamide Riboside legal in the United States?
Nicotinamide Riboside can be sold in the United States as a supplement or cosmetic ingredient, classified as "Sold as a dietary supplement". That is not drug approval: FDA has not evaluated any health claim, and injectable or "research use only" versions fall outside supplement rules, so that label does not make human use lawful. Human evidence: Moderate.
Nicotinamide Riboside in the United States at a glance
| Classification | Sold as a dietary supplement |
|---|---|
| FDA approval status | Sold as a supplement; not an approved drug |
| Evidence level | Moderate (research strength: Moderate) |
| Reviewed | Sep 2026 |
Classification and note come from the Nicotinamide Riboside profile, checked against U.S. Food and Drug Administration (FDA) listings at the reviewed date.
What this means
- 01
Nicotinamide Riboside can be sold in the United States as a supplement, food or cosmetic ingredient under the classification above, without drug approval.
- 02
Supplement status means FDA has not evaluated any health claim; manufacturers are responsible for safety and labeling, and quality varies by product.
- 03
Injectable or "research use only" versions are not supplements. That label does not make human use lawful, and injectables fall under medicines rules.
What Nicotinamide Riboside is
A well-studied vitamin B3 form and NAD+ precursor that reliably raises NAD+ levels in humans, widely used in longevity supplement stacks.
Nicotinamide riboside is a form of vitamin B3 that the body converts into NAD+, the coenzyme central to energy metabolism and cellular repair. Human trials show it safely and reliably raises NAD+ levels, and it is one of the most studied NAD+ precursors, sold as a supplement (for example Niagen).
Mechanism: Converts to NAD+ through the salvage pathway, restoring NAD+ that declines with age and supporting mitochondrial and repair enzymes.
Regulatory history: Sold as a supplement; not an approved drug
How FDA treats this kind of product
Approves prescription drugs by indication and polices unapproved products, including peptides sold online. Compounding pharmacies may prepare some compounds under a prescription when the FDA places them on a permitted bulk-substances category.
The classification above is the The Longevity Archive reading of U.S. Food and Drug Administration listings for Nicotinamide Riboside at the reviewed date, not a legal opinion. Rules change, and importing, prescribing and possessing a compound can each be treated differently. Check the regulator directly before acting on anything here.
Nicotinamide Riboside in other countries
United Kingdom
Supplement or cosmeticSold as a supplement
Is Nicotinamide Riboside legal in the United Kingdom?Australia
Supplement or cosmeticAvailable as a supplement / complementary medicine
Is Nicotinamide Riboside legal in Australia?Canada
Supplement or cosmeticSold as a supplement
Is Nicotinamide Riboside legal in Canada?Frequently asked questions
Is Nicotinamide Riboside legal in the United States?
Nicotinamide Riboside can be sold in the United States as a supplement or cosmetic ingredient, classified as "Sold as a dietary supplement". That is not drug approval: FDA has not evaluated any health claim, and injectable or "research use only" versions fall outside supplement rules, so that label does not make human use lawful. Human evidence: Moderate.
Can I buy Nicotinamide Riboside in the United States?
Yes, in supplement or cosmetic form. In the United States Nicotinamide Riboside is classified as "Sold as a dietary supplement", so oral, topical or cosmetic products can be sold under supplement rules. Injectable versions and products labeled "research use only" are not supplements and are not approved for human use.
Is Nicotinamide Riboside FDA approved?
No. FDA status: Sold as a supplement; not an approved drug. Current US classification: "Sold as a dietary supplement". Evidence level: Moderate.
Related compounds in the United States
Full research profile
Mechanism, cited studies, FDA status and the full legal summary for Nicotinamide Riboside live on its compound profile.
Nicotinamide Riboside profileThis page is general information about the regulatory status of Nicotinamide Riboside in the United States, current as of Sep 2026. It is not legal advice, and classifications change; check U.S. Food and Drug Administration directly or consult a lawyer for a specific situation. Educational use only. This database summarizes published research. It is not medical advice and contains no dosing protocols or recommendations for personal use. The Longevity Archive has no vendor relationships and does not recommend where to buy anything.