NMN Pure vs NMN Plus: Why These Are Our Two Best NMN Supplements
Medically reviewed by Dr Chun Tang (MBChB, MRCGP) · Written by the Little Ox team · 21 July 2026
Two of our supplements do more work than any others in the Little Ox range: NMN Pure and NMN Plus. They're our best-sellers, they're the two we're asked about most, and they're the two we'd point almost anyone starting out towards. Here's an honest look at what they are, what the research examines them for, and how to choose between them.
The one thing NMN Pure and NMN Plus have in common
Both are built on the same foundation: 500mg of pharmaceutical-grade β-NMN (Nicotinamide Mononucleotide), independently tested at 95.8% purity by Eurofins (HPLC-DAD) and made in the UK to GMP and ISO 22000 standards. NMN is the most direct oral precursor to NAD+, a coenzyme found in every cell in the body and involved in cellular energy metabolism and DNA repair pathways. Published research has documented an age-related decline in NAD+ of roughly 1–2% per year from the third decade of life onward, which is why NMN has become one of the most-studied compounds in the field.
Where the two products differ is what sits alongside that NMN — and that difference is the whole decision.
NMN Pure — clean, single-ingredient NMN
NMN Pure is exactly what the name says: 500mg of β-NMN, plus Black Pepper Extract (95% piperine) for absorption, and nothing else. No fillers, no binders, no padding.
Who it's for: people who want pure NMN and nothing more — either because they're keeping things simple, or because they're building their own supplement routine and want to control each ingredient separately. It's also our most affordable entry point at from £7.99 per month, which makes it the easiest way to start and, crucially, to stay consistent.
Consistency is the point with NMN. The published research examines effects over weeks and months of steady daily dosing — not single doses — so the supplement that actually works is the one you can afford to keep taking. That's the entire reason we price NMN Pure the way we do.
NMN Plus — NMN paired with Trans-Resveratrol
NMN Plus takes the same 500mg of β-NMN and adds Trans-Resveratrol — the bioavailable isomer studied alongside NMN in NAD+/sirtuin pathway research. The logic is simple: NMN supplies the NAD+ precursor, while resveratrol is studied for its interaction with the sirtuin enzymes that use NAD+ as a cofactor. The two compounds sit at different points on the same biochemical pathway, which is why researchers have examined them together.
Who it's for: people who want the most-studied NMN combination in a single daily capsule, rather than taking NMN and resveratrol separately. At from £9.99 per month, it's £2 more than NMN Pure — the cost of adding the resveratrol. Our guide What is Resveratrol and Why Does it Work So Well With NMN? goes deeper on the research if you want it.
NMN Pure vs NMN Plus: which should you choose?
| NMN Pure | NMN Plus | |
|---|---|---|
| β-NMN dose | 500mg | 500mg |
| Trans-Resveratrol | — | ✓ |
| Absorption support | Black Pepper Extract | Black Pepper Extract |
| From / month | £7.99 | £9.99 |
| Best for | Clean, single-ingredient NMN | The most-studied NMN + resveratrol combination |
There's no wrong answer. If you want simplicity and the lowest price, choose NMN Pure. If you want NMN and resveratrol working together in one capsule, choose NMN Plus.
How to take them
One capsule daily, in the morning — which aligns with the body's natural NAD+ production rhythm. NMN Pure can be taken on an empty stomach or with a light meal. NMN Plus is best taken with a small amount of food, as a little dietary fat improves trans-resveratrol absorption.
Many customers build a simple daily stack: NMN in the morning, and Magnesium Glycinate in the evening — magnesium contributes to normal muscle function, normal functioning of the nervous system, normal psychological function and a reduction of tiredness and fatigue. Our Vital Energy Trio bundles the two with Shilajit Complex.
The best-value way to buy either one
If you already know NMN is part of your routine, buying month-by-month is the expensive way to do it. The NMN Plus 12 Month Supply locks in a full year at £84.99 — saving over 67% versus the monthly price. An NMN Pure 12 Month Supply is also available for long-term supplementers who want pure NMN at the lowest possible price-per-month — a full year for £69, just 19p a day.
Why buy your NMN from Little Ox?
- Independently third-party tested — 95.8% purity verified by Eurofins, with Certificates of Analysis published for every batch.
- UK-made to GMP and ISO 22000 standards.
- Doctor-designed by Dr Chun Tang, a practising NHS & private GP with 26 years of clinical experience.
- Honestly priced — from £7.99/month, against competitors charging £35–£70 for the same dose.
Whichever you choose, you're getting UK-made, independently tested, doctor-designed NMN at a price built for consistency. Explore NMN Pure, NMN Plus, or the full Little Ox range.
Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle. This article is for general information and does not constitute medical advice; consult your GP or pharmacist before starting a new supplement, particularly if you are pregnant, breastfeeding or taking medication.