Vivanmn costs £29.99 for 30 capsules of 500mg NMN in the UK, £49.99 for 60 and £59.99 for 90, with a best stated deal of £44.99 for 90 on a 25% subscription (£1.00 a gram), checked 24 October 2026. If you want single-ingredient 500mg capsules at a lower price per gram, RGENR8's 3-month plan is £27.99 for 90 on a first order (31p a day, £0.62 a gram), which is 38p a gram below Vivanmn's best stated deal.
This is our review of Vivanmn's prices, testing documents and terms as it publishes them. On 24 October 2026 we read its product page, its transparency page and the batch certificate PDF as a UK visitor. We did not lab-test the capsules. We also sell a competing product, RGENR8 Pure NMN Pro, which is why the tables show both side by side. Vivanmn is also written VivaNMN or Viva NMN; it is the same brand.
Single-ingredient 500mg capsules. First 90 for £27.99. See the 3-month plan
Vivanmn price in the UK, per capsule and per gram
Vivanmn's lowest price per gram is its 90-capsule pack on subscription, at £1.00. Its one-off prices run from £2.00 a gram for 30 capsules down to £1.33 for 90.
| Product | NMN per capsule | Capsules | Price shown | Per gram | Best stated deal | Per gram on deal |
|---|---|---|---|---|---|---|
| Vivanmn 30-pack | 500mg | 30 | £29.99 | £2.00 | £22.49 (25% subscription) | £1.50 |
| Vivanmn 60-pack | 500mg | 60 | £49.99 (list £59.99) | £1.67 | £37.49 (25% subscription) | £1.25 |
| Vivanmn 90-pack | 500mg | 90 | £59.99 (list £89.99) | £1.33 | £44.99 (25% subscription) | £1.00 |
| RGENR8 3-month plan | 500mg | 90 | £34.99 every 3 months | £0.78 | £27.99 first order with WELCOME20 | £0.62 |
Checked 24 October 2026 on each seller's own page, in GBP, for UK delivery. Price per gram is the price divided by the grams of NMN in the pack. Best stated deal is the lowest price per gram a page states after a subscription saving or a public first-order code. Vivanmn marks its 60 and 90 packs as reduced from £59.99 and £89.99. The table uses what a buyer pays today, while the UK NMN Price Index records list prices (see our Vivanmn price page). A Vivanmn pop-up offers 30% off a first bottle for an email address until 3 December. We left it out because we have not seen how it applies to each pack; if it took 30% off the 90-capsule pack, that would be about £41.99, or 93p a gram, still above RGENR8's £0.62. The 3-month plan and the one-off 3-pack are the same 90 capsules at the same £34.99.
Per day, Vivanmn's 90-capsule subscription is 50p and its one-off 90 is 67p, while RGENR8's 3-month plan is 31p on the first order and 39p after.
What a year of daily capsules costs
Twelve months of one 500mg capsule a day (360 capsules, 180g of NMN) costs £179.96 on Vivanmn's 90-capsule subscription and £132.96 on RGENR8's 3-month plan, a gap of £47.00.
| Route | How the year adds up | 12-month total | Per gram |
|---|---|---|---|
| Vivanmn 90, one-off | 4 x £59.99 | £239.96 | £1.33 |
| Vivanmn 90, 25% subscription | 4 x £44.99 | £179.96 | £1.00 |
| RGENR8 3-month plan | £27.99 first order, then 3 x £34.99 | £132.96 | £0.74 |
Assumes today's prices hold for the year and the first-order code is used once. Delivery is free on both.
Vivanmn and RGENR8 side by side: specification and terms
Both brands sell a 500mg NMN capsule taken once a day. The differences are in price, how the certificate reaches you, and the terms.
| Detail | Vivanmn | RGENR8 |
|---|---|---|
| NMN per capsule | 500mg stated; the batch 4670 certificate measured 506mg | 500mg beta-NMN |
| Ingredients as stated | NMN; capsule shell of 100% vegetable cellulose | 500mg beta-NMN, vegan HPMC shell, no fillers or binders |
| Purity as stated | Described as pure NMN, no percentage on the product page; 99.79% by HPLC on the batches 4660 to 4662 certificate (July 2025) | At least 99% |
| Subscription | 25% off, delivered every month, every 2 months or every 3 months | 3-month plan at £34.99 every 3 months (first order £27.99 with WELCOME20), or £22.95 a month for one bottle; cancel or switch online any time |
Vivanmn details are as stated on its own pages on 24 October 2026.
Lower price per gram, same 500mg capsule. Start 3 months for £27.99
What Vivanmn's testing documents show
Vivanmn publishes the certificate of analysis for its current batch, 4670, on its transparency page and links the same PDF from its product page. We read the PDF itself on 24 October 2026.
| Item | What the certificate says |
|---|---|
| Laboratory | Certified Laboratories, stated to be an A2LA ISO 17025 accredited testing laboratory (accreditation certificate number 3034.01 as printed) |
| Sample | Beta-nicotinamide mononucleotide, batch lot 4670, accession 260513-0281; Vivanmn's page describes it as finished capsules |
| Dates | Received 12 May 2026, certified 20 May 2026 |
| NMN content | 506mg by HPLC, reported as is (label states 500mg) |
| Lead, arsenic, cadmium | Not detected by ICP-MS (detection limit 0.015 ppm each) |
| Mercury | Not detected by ICP-MS (detection limit 0.00038 ppm) |
The certificate carries a note on scope. The NMN content result is marked as not covered by the lab's A2LA accreditation, and the lab says it was run to general compendial methods (USP/NF, EP, JP and AOAC). Vivanmn repeats the note on its own page and says the heavy-metal results are inside the accredited scope. ISO 17025 accreditation is granted test by test, so a lab can be accredited and still run some tests outside that scope.
The batch 4670 certificate has five results (NMN content and four metals), with no purity percentage and no microbiology result. Vivanmn's page also lists an earlier certificate for batches 4660 to 4662, certified 7 July 2025, reporting 99.79% purity by HPLC and the same four metals not detected.
These six checks apply to any brand's certificate, ours included:
- The lab is named, and you can look up its accreditation.
- The batch number matches the one printed on your bottle.
- The test date is recent.
- The sample is finished capsules (some certificates cover the raw powder).
- You know which results sit inside the accredited scope.
- NMN content and purity are measured, with the method named (HPLC is the usual one).
Our NMN purity checklist goes through each one. RGENR8 tests every batch with an independent accredited lab and sends the certificate of analysis on request.
What buyers say: public review counts
Trustpilot showed 1,701 reviews for vivanmn.com on 24 October 2026, with an overall rating of about 4.5 out of 5. Vivanmn's own site shows 4.9 out of 5 from 14,304 reviews on the product page (its reviews page says 14,000+), collected through a review app after delivery.
Those are counts only, and we do not quote individual reviews. Trustpilot is a separate site, while the on-site reviews are published by Vivanmn itself.
Who Vivanmn suits, and who RGENR8 suits
Vivanmn suits buyers who want to read a lab certificate for the current batch before ordering, a 100-day return window (return postage is on the buyer) and a monthly delivery option. It also has the larger public review base.
RGENR8 suits buyers after single-ingredient 500mg capsules at a lower price per gram: £0.62 on the first 3-month order and £0.78 after, free UK delivery, and the certificate on request.
More brands: Vivanmn alternatives ranks the closest products by price per gram, and Best NMN supplement UK 2026 compares the main brands.
Common questions
Is Vivanmn legit?
Yes, on the public record we checked. Vivanmn's site names Viva Research Ltd, and Companies House lists a company of that name (number 15439025, active, incorporated 24 January 2024). It publishes a certificate for its current batch and had 1,701 Trustpilot reviews on 24 October 2026. Like every NMN brand sold in Britain, it sells a product with no GB novel food authorisation yet; the application, RP-2116, is at risk assessment with the Food Standards Agency.
Is Vivanmn good?
We have not lab-tested it, so we cannot say how any capsule performs. Its published documents show 500mg of NMN stated per capsule, 506mg measured in batch 4670, and lead, arsenic, cadmium and mercury not detected, with the NMN measurement outside the lab's accreditation scope. It also has a public certificate, a 100-day guarantee and a 25% subscription. If price per gram matters most, RGENR8's 3-month plan is £0.62 a gram on a first order against £1.00 for Vivanmn's best stated deal.
What is the Vivanmn price in the UK?
On 24 October 2026 Vivanmn was £29.99 for 30 capsules, £49.99 for 60 and £59.99 for 90, all 500mg NMN. On its 25% subscription those become £22.49, £37.49 and £44.99, which is £1.50, £1.25 and £1.00 a gram. UK delivery is free.
What are the alternatives to Vivanmn in the UK?
For single-ingredient 500mg capsules at a lower price per gram, RGENR8 Pure NMN Pro is £27.99 for 90 capsules on a first 3-month order (£0.62 a gram), then £34.99 every 3 months (£0.78 a gram). Our Vivanmn alternatives page ranks the eight closest products from other UK brands by price per gram.
Does Vivanmn publish a certificate of analysis?
Yes. Its transparency page publishes the certificate for batch 4670 (certified 20 May 2026) and an earlier one for batches 4660 to 4662 (certified 7 July 2025), and the product page links the current PDF. The current certificate reports 506mg NMN per capsule and four metals not detected, with the NMN result outside the lab's A2LA accreditation scope. Check that the batch number on your bottle matches the certificate.
If you are pregnant, breastfeeding, taking medication or managing a health condition, check with your GP or pharmacist before taking any supplement.
If something here is out of date, email support@rgenr8.com with a link to the page. Shop Pure NMN Pro.
