Updated October 2026. Label facts checked on 21 October 2026 on each brand's own UK website. Verve makes one of the products below (NMN 1000mg Capsules), so read the table before you read our view.
Eight UK brands sell NMN as capsules or powder, and their labels differ in four ways that matter more than the front of the pack: the dose per serving (500mg or 1000mg, in one or two capsules), the servings per pack (30 or 60), whether a purity figure and a certificate of analysis are given, and what else is in the capsule. Five of the eight state a purity percentage. One links its certificate on the product page; others supply it on request or after the order ships; two show no testing statement at all. NMN is nicotinamide mononucleotide, a precursor to NAD+; that is the chemistry, and this article makes no claim beyond it. Here are the eight UK NMN products that come up most often, compared on their labels.
The short answer
- 1000mg a serving, NMN and a plant capsule only, certificate on request: Verve NMN 1000mg Capsules, 2 x 500mg, 60 capsules, 30 servings. Independently lab-tested, certificate of analysis on request; no purity figure on the page.
- Certificate of analysis linked on the page: Longevity Box Pure NMN, a 30g powder, 60 scoops of 500mg, over 99% purity, certificate PDF for batch 30346 (June 2026).
- Uthever branded NMN with a purity figure: Youth & Earth NMN Capsules 500mg (minimum 99%, every batch tested by Light Labs) and DoNotAge Pure NMN (99.8%, certificate on request). Both label 1000mg as two capsules.
- One 500mg capsule a day, two months in a bottle: Kiki Health NMN, 60 capsules, at least 99.8%, hypromellose shell only.
- One 500mg capsule a day, 30 to a bottle: Charava NMN 500 (99.8%, third-party tested in the USA) and NMN Bio NMN 500mg (batch certificate emailed after shipping).
- 1000mg a serving with the least on the page: Welzo NMN Pro 1000, 60 vegan-friendly capsules. No purity figure, testing statement or capsule shell named.
Best NMN supplement UK: the comparison table
Every column is a label fact taken from the product page. "Not stated" means the page does not give it. Prices are left out on purpose; each brand's current price is on its own site, and the reason is in "How we checked".
| Product | Form | NMN per serving | Servings per pack | Stated purity | Testing and certificate of analysis | Other ingredients in the capsule | Storage advice | UK-based brand? | Where sold |
|---|---|---|---|---|---|---|---|---|---|
| Verve NMN 1000mg Capsules | Capsule | 1000mg (2 x 500mg) | 30 (60 capsules) | Not stated | Independently lab-tested; certificate of analysis on request | Plant cellulose shell only | Not stated | Yes | vavaverve.com (brand also at Boots, Holland & Barrett, Amazon UK; NMN listing not checked by us) |
| Welzo NMN Pro 1000 | Capsule | 1000mg (2 capsules; mg per capsule not stated) | 30 (60 capsules) | Not stated ("high-purity", no figure) | Not stated; no certificate | "Vegan-friendly capsules"; shell not named | Not stated | Yes (site says UK based) | welzo.com |
| Longevity Box Pure NMN | Powder | 500mg (one scoop) | 60 (30g tub) | Over 99%, every batch | Independently tested in the UK; certificate PDF linked on the page (batch 30346, June 2026) | None (powder; "NMN 500mg" is the whole list) | Fridge if possible; otherwise cool, dry, airtight, dark | Yes (Poole) | longevitybox.co.uk |
| Youth & Earth NMN Capsules 500mg | Capsule (powder also sold) | 1000mg (2 x 500mg); a 250mg size gives 500mg | 30 (60 capsules) | Minimum 99% (Uthever NMN) | Every batch tested by Light Labs; brand says certificates provided | Rice flour; HPMC shell | Fridge recommended | Yes (London) | youthandearth.com |
| Kiki Health NMN 60 Vegicaps | Capsule | 500mg (1 capsule) | 60 (60 capsules) | At least 99.8% (one line says 99%) | Every batch screened before encapsulation; no third-party wording; no certificate on the page | Hypromellose shell only | Cool, dry place; fridge not required | Yes (Norfolk) | kiki-health.com |
| DoNotAge Pure NMN | Capsule (powder also sold) | 1000mg (2 x 500mg) stated daily serving; directions say 1 to 2 | 30 (60 capsules; 366 size also sold) | 99.8% (Uthever NMN) | Each batch third-party tested; certificate on request | HPMC shell only | Cool, dry place; fridge not required | Yes (brand says UK based) | donotage.org, Healf |
| Charava NMN 500 | Capsule | 500mg (1 capsule) | 30 (30 capsules); 60 and 90-day packs sold | 99.8% | Third-party tested in the USA; certificate "provided above" (not visible to us) | Hypromellose shell only | Not stated | Yes (UK-made) | charava.co.uk |
| NMN Bio NMN 500mg | Capsule | 500mg (1 capsule); directions say 1 or 2 | 30 (30 capsules); 250mg version sold | Not stated | Third-party tested; GMP-certified UK facility; batch certificate emailed after shipping | Vegetable cellulose shell only | Room temperature, cool and dry; fridge not required | Yes (London) | nmnbio.co.uk |
What the eight labels say
Every capsule here is 500mg, apart from Youth & Earth's 250mg size; four brands call two capsules a serving, three call one, and Longevity Box is the only powder. Five of the eight state a purity figure, between 99% and 99.8%; Verve, Welzo and NMN Bio do not. Only Longevity Box links a certificate of analysis on the page. Verve and DoNotAge supply one on request, NMN Bio emails one after shipping, Youth & Earth says it provides them, Charava says one is on its page, and Kiki Health and Welzo show none. Five capsules list only a shell, Youth & Earth adds rice flour, Welzo does not name the shell. Two brands say fridge, three say a cool, dry place, and three (Verve, Charava, Welzo) say nothing about storage.
The products in detail
Verve NMN 1000mg Capsules
Verve NMN is the product we make. The label is two lines: 1000mg of nicotinamide mononucleotide per two-capsule serving, in a plant cellulose shell. Sixty capsules, 30 servings, two capsules once a day with water, ideally before midday. Every batch is independently lab-tested for purity, and the certificate of analysis for your batch is available on request from hello@vavaverve.com. The gaps: the page gives no purity percentage (five competitors do), no storage line (five do), and the certificate is on request rather than linked (only Longevity Box links one). £34.99 one-off (£1.17 a serving), £31.49 a month (£1.05) or £84 a quarter for three packs (93p). It is also in the Core Renewal Stack with TMG 1500mg, Ca-AKG 1000mg, quercetin with fisetin, and spermidine. Who it suits: anyone who wants a 1000mg serving with nothing else in the capsule and a certificate they can ask for.
Welzo NMN Pro 1000
Sixty vegan-friendly capsules labelled 1000mg of NMN per two-capsule serving, so 30 servings. The page is thin on label detail: no dose per capsule, no shell material, no purity percentage, no testing statement, no certificate and no directions beyond "each daily serving". The brand line is "Ultra Purity" and the description says "high-purity", with no figure behind either. No storage advice. Welzo describes itself as a UK based healthcare marketplace. Who it suits: anyone who wants 1000mg a serving in a vegan capsule and will check the physical label for what the page leaves out.
Longevity Box Pure NMN
The only powder here. A 30g tub is labelled as 60 scoops of 500mg and the ingredient list is one line: "NMN 500mg". Every batch is said to exceed 99% purity and is tested by an independent UK laboratory, and it is the only product in the table with a certificate of analysis linked on the page (batch 30346, June 2026). The brand says it is free from binders, fillers, preservatives and additives. A fridge is recommended, or failing that a cool, dry, airtight, dark place. Three-pack and six-pack options are sold. Longevity Box is in Poole. Who it suits: anyone who prefers powder and wants to read the certificate before buying.
Youth & Earth NMN Capsules
One 60-capsule bottle in two capsule sizes, 500mg and 250mg, two capsules a serving, so 1000mg or 500mg a day for 30 days. Uthever NMN at a minimum 99% purity. The ingredient list is NMN, rice flour and an HPMC capsule. Every batch is tested by Light Labs for purity, heavy metals and endotoxins, and the brand says it provides certificates of analysis; we did not see one linked. A fridge is recommended. Trades as Empower3d Ltd, London; a powder is also sold. Who it suits: anyone who wants Uthever NMN with the testing lab named and a choice of 250mg or 500mg capsules.
Kiki Health NMN
Sixty capsules of 500mg, labelled as one a day, so 60 servings. The ingredient list is B-nicotinamide mononucleotide and a hypromellose shell. Purity is at least 99.8% in most places on the page and 99% in one line. Testing is every batch screened and quality-checked before encapsulation; no third-party wording and no certificate on the page. Storage is a cool, dry place away from sunlight; refrigeration is not required. Kiki Ltd is in Aylsham, Norfolk. Who it suits: anyone who wants one 500mg capsule a day and two months in a bottle.
DoNotAge Pure NMN
One of the brands most often named for this question. The capsules are 500mg of Uthever NMN, stated at 99.8% purity, in an HPMC shell, 60 to a bottle; a 366-capsule size and a powder are also sold. The stated daily serving is 1000mg (two capsules), with directions saying one to two. Each batch is third-party tested and certificates are available on request. Storage is a cool, dry place; refrigeration is not required. The brand says it is UK based. Its own site showed us US dollar pricing, and the capsules are also stocked by Healf, a UK retailer. Who it suits: anyone who wants Uthever NMN at a 1000mg serving, with a large pack size on offer.
Charava NMN 500
A 30-capsule bottle of 500mg capsules, one a day, so 30 servings; 60-day and 90-day packs are also sold. Ingredients are NMN and a hypromellose capsule, and the page says free from artificial colours, flavours, preservatives, gluten, soy and GMOs. Purity is 99.8% and the product is third-party tested in the USA; the page says a certificate of analysis is provided, though we could not see one in the page text. UK-made, in an amber glass bottle. No storage advice. Who it suits: anyone who wants a single 500mg capsule a day in a glass bottle and a 30-day pack to start with.
NMN Bio NMN 500mg
A 30-capsule bottle of 500mg capsules, labelled as 30 days in one bottle, though the directions say one or two a day. Ingredients are NMN and a vegetable cellulose shell. No purity percentage is given. The product is third-party tested, packaged in a GMP-certified UK facility and tested for heavy metals and microbiological contaminants, and a batch certificate is emailed after the order ships. Storage is room temperature in a cool, dry place away from sunlight and heat; refrigeration is not required. NMN Bio Ltd is in London; a 250mg capsule is also sold. Who it suits: anyone who wants a batch certificate sent with the order and a single 500mg capsule a day.
Others you will see named
Naturecan sells NMN capsules in the UK, but its website would not let our tools read the product page, so it is left out rather than guessed at. Vitality Pro's website was a holding page when we checked. Time Health sells Ultra NMNH, a different compound from NMN; Longevity Box also sells NMNH. ProHealth Longevity, Renue by Science, Double Wood and Toniiq are US brands; we have not checked them on a UK site. We found no NMN product at Bulk, Wellgard or Hey Nutrition.
How to compare NMN supplements
- Dose per serving, then per capsule. "500" on the front can mean 500mg per capsule or per two-capsule serving. Youth & Earth's 250mg capsules give 500mg a serving; Charava's 500mg capsule is the serving.
- Servings, not capsule count. Sixty capsules is 30 servings at two a day or 60 at one a day. Thirty capsules at one a day is 30 servings of half the amount.
- Is a purity figure stated? Five of the eight give one, between 99% and 99.8%. Verve, Welzo and NMN Bio do not. Where two figures appear on one page (Kiki Health: 99.8% and 99%), read the lower one until the brand confirms.
- Is a certificate of analysis available, and how? Longevity Box links one on the page. Verve and DoNotAge supply one on request, NMN Bio emails one after shipping, Youth & Earth says it provides them, and Charava says one is on its page (we could not see it). Kiki Health and Welzo show none.
- What else is in the capsule. Check the shell (HPMC, hypromellose and plant cellulose are the same family) and anything after it, such as rice flour. A powder has no shell.
- Storage. Two brands say fridge (Longevity Box, Youth & Earth), three say a cool, dry place (Kiki Health, DoNotAge, NMN Bio), three say nothing (Verve, Charava, Welzo).
- Price the plan you will actually be on. One-off, monthly and quarterly plans differ. Check each brand's site for today's price; we have not compared prices in this article.
NMN supplements: your questions
How much NMN per day do UK brands put in a serving?
A labelled serving is either 500mg or 1000mg. Charava, Kiki Health, NMN Bio and Longevity Box label 500mg (one capsule or scoop). Verve, Welzo, DoNotAge and Youth & Earth's 500mg size label 1000mg as two capsules. Per capsule the range is 250mg to 500mg. This is what the labels say, not a recommendation.
Which UK NMN products publish a certificate of analysis?
Only Longevity Box links one on the product page, a PDF for batch 30346 tested in June 2026. Verve supplies the certificate for your batch on request from hello@vavaverve.com, and DoNotAge supplies one on request. NMN Bio emails a batch certificate after the order ships. Youth & Earth says it provides certificates and Charava says one is on its page, but we could not see either. Kiki Health and Welzo show none.
Capsules or powder - what is the difference on the label?
A capsule label fixes the dose: so many milligrams per capsule, so many capsules in the bottle. A powder label gives a pack weight and a scoop size (Longevity Box: 30g, 60 scoops of 500mg), so the count depends on a level scoop. Capsules add a shell and sometimes a flow agent such as rice flour; a pure powder lists one ingredient.
Does Verve NMN contain anything other than NMN?
No. The label lists nicotinamide mononucleotide, 1000mg per two-capsule serving, and a plant cellulose capsule shell: no rice flour, no anti-caking agent, no blend. The page states every batch is independently lab-tested for purity, with the certificate of analysis available on request from hello@vavaverve.com. It does not state a purity percentage, which five competitors do.
What is the difference between NMN and TMG and why are they sold together?
They are different compounds. NMN is nicotinamide mononucleotide, a nucleotide. TMG is trimethylglycine, also called betaine, a methyl donor. Many brands sell them side by side: NMN Bio's Morning Bundle, Welzo's NMN and TMG stack, DoNotAge's Pure TMG next to Pure NMN, and Verve's Core Renewal Stack with NMN, TMG and Ca-AKG. That describes what is sold together; this article makes no claim about either.
Where can I buy NMN in the UK?
All eight brands sell direct from their own websites; DoNotAge is also stocked by Healf, a UK retailer. Verve as a brand is also sold at Boots, Holland & Barrett and Amazon UK; we have not checked the NMN listing at each. Verve NMN is £34.99 one-off, £31.49 a month or £84 a quarter for three packs at vavaverve.com.
How we checked
Every label fact above was taken from the brand's own website on 21 October 2026: vavaverve.com, welzo.com, longevitybox.co.uk, youthandearth.com, kiki-health.com, donotage.org, charava.co.uk and nmnbio.co.uk, using the store's own product data feed where a page would not render. Healf.com was also read as DoNotAge's UK stockist. Where a page did not state a figure we have written "Not stated" rather than guessing, and we have not repeated any brand's claims about what NMN does. Prices are deliberately not compared here: they change weekly and promotions distort them. Every brand's current price is on its own site. Verve makes NMN 1000mg Capsules; the table is label facts, our opinion is in the text.
Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. The mention of other brands is for comparison only. All trademarks belong to their respective owners.
