Nothing to hide.
Is vivanmn legit? Yes, but check for yourself.
If you're reading this, you've probably seen one of our ads and want to know if there's really 500mg of NMN in the capsule. Fair. We're a family-owned UK company. We make one product, here in the UK, and send our batches to an independent accredited lab. What's in it, who tested it and how the 100-day guarantee works are all below.
Latest batch 4670, tested May 2026 by Certified Laboratories, an independent lab.
Three steps from batch to bottle
Made in the UK
Manufactured here to UK production standards, never imported white label stock.
Independently tested
We send our batches to an independent lab, accredited for heavy metals, to check what is in the capsule.
Certified, then shipped
Only batches that pass get bottled. The certificate below is the proof.
Batch 4670, May 2026
This is the certificate for the batch on sale now, exactly as the laboratory issued it. The summary below is taken straight from the document.
- Sample
- β-Nicotinamide mononucleotide (NMN), finished capsules
- Product code
- NMN001
- Batch lot
- 4670
- Accession no.
- 260513-0281
- Received
- 12 May 2026
- Certified
- 20 May 2026
| Test and method | Result |
|---|---|
| NMN contentHPLC, reported as is | 506 mg per capsule |
| LeadICP-MS, detection limit 0.015 ppm | Not detected |
| ArsenicICP-MS, detection limit 0.015 ppm | Not detected |
| CadmiumICP-MS, detection limit 0.015 ppm | Not detected |
| MercuryICP-MS, detection limit 0.00038 ppm | Not detected |
The laboratory notes that the NMN content result was carried out to general compendial methods (USP/NF, EP, JP and AOAC) and sits outside the scope of its A2LA accreditation. The heavy-metal results are within scope. Results are representative of the sample submitted.
Every certificate we have published
Each batch gets its own certificate. As new batches are tested, they are added here.
Feel it or your money back. 100 days to decide.
If it's not for you, email us within 100 days of buying, send the bottle back and we'll refund you once it's with us. Return postage is on you. Full terms