QUICK ANSWER · AEO / GEO
An endogenous redox cofactor, not a peptide; evidence depends strongly on precursor, formulation and route.
NIH Office of Dietary Supplements: niacin and NAD · Definition clarification checked 30 August 2026; not a new full regulatory review.
ENTITY FACTS
What should readers identify first?
What remains unknown?
- whether direct NAD+ improves any patient-important clinical outcome
- tissue distribution and cellular uptake across routes and formulations
- long-term safety, interaction and repeated-exposure risks
- comparability among IV preparations and proprietary oral formulations
- whether biomarker increases translate into better function or healthspan
- current Thailand, EU and UK product-specific regulatory status pending direct verification
- status and results of ongoing or recently completed formulation-specific trials
What limits these conclusions?
- The direct-human literature is small, short and dominated by pharmacokinetic, biomarker or tolerability endpoints. The 2019 IV study had only eight treated participants and three controls; the 2026 IV comparison was retrospective with six direct-NAD+ clients; and the oral RCT tested one proprietary formulation for five days. Route, formulation and precursor studies cannot be pooled as a single NAD+ efficacy claim.
This overview does not replace the detailed adverse-event and product-specific risk discussion in the complete Thai profile or the original sources.
EVIDENCE BOUNDARY
What this overview does not establish
- An evidence grade does not rank this molecule against another treatment.
- A molecule name does not establish the identity, purity or regulatory status of a product.
- Animal, cell or biomarker findings do not automatically establish human clinical benefit.
- Approval in one country or indication does not transfer globally.
Where can I check the evidence?
Original sources from the same evidence record used by Compare. Read each source's population, methods, limitations and date; a citation is not product endorsement.
- https://www.fda.gov/drugs/human-drug-compounding/fda-reminds-compounders-use-ingredients-suitable-sterile-compounding
- https://www.fda.gov/media/94155/download
- https://www.fda.gov/media/94164/download
- https://www.fda.gov/inspections-compliance-enforcement-and-criminal-investigations/warning-letters/genogenix-llc-718739-01202026
- https://pubmed.ncbi.nlm.nih.gov/31572171/
- https://pubmed.ncbi.nlm.nih.gov/41704678/
- https://pubmed.ncbi.nlm.nih.gov/42530810/
- https://clinicaltrials.gov/study/NCT07336836
- https://pubmed.ncbi.nlm.nih.gov/39531138/
- https://products.mhra.gov.uk/
- https://www.ema.europa.eu/en/medicines/download-medicine-data
- https://pertento.fda.moph.go.th/FDA_SEARCH_DRUG/SEARCH_DRUG/FRM_SEARCH_DRUG.aspx
- https://www.wada-ama.org/en/resources/world-anti-doping-program/prohibited-list
- https://www.wada-ama.org/sites/default/files/2024-08/tue_physician_guidelines_iv_infusion_-_version_8.0_-_august_2024.pdf
FAQ · ANSWER ENGINE
Frequently asked questions
What is NAD+, and is it the same as vitamin B3?
NAD+ is the oxidised form of the coenzyme nicotinamide adenine dinucleotide, involved in cellular reactions. It is not another name for vitamin B3 (niacin); the body uses niacin to make NAD. This biological role does not establish the benefit or safety of every NAD+ supplement. Evidence must be assessed for the specific substance and formulation.
What is NAD+?
NAD+ is described pharmacologically as Endogenous redox cofactor and metabolic co-substrate; not a peptide. An endogenous redox cofactor, not a peptide; evidence depends strongly on precursor, formulation and route.
Does NAD+ have strong evidence?
PrimeCoreBio records Evidence Grade C. This grade describes evidence strength, not comparative effectiveness or suitability for an individual.
Is NAD+ approved everywhere?
No global conclusion should be inferred. PrimeCore Class C must be read with the exact product, country and indication on the source-rich profile.
Educational information only. This page does not provide diagnosis, treatment, prescribing, dosage, injection instructions or individual medical advice.