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NMN Pure
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NMN Pure is our flagship single-ingredient NMN supplement — 500mg pharmaceutical-grade β-Nicotinamide Mononucleotide, the most-studied direct oral precursor to NAD+. One capsule each morning. Independently tested at 95.8% purity (Eurofins, HPLC-DAD). Manufactured in the UK to GMP and ISO 22000 standards. From £7.99 per month — designed to be the price that lets you stay consistent over the long term.
Doctor-designed by Dr Chun Tang — MBChB (Manchester), MRCGP, MBA
Practising NHS & private GP, 26 years of clinical experience. GP at Pall Mall Medical (CQC-registered), Manchester. As featured in The Telegraph, The Mirror, The Independent and Women's Health.
Pure 500mg β-NMN — UK-Made, Independently Tested
NAD+ is a coenzyme present in every cell of the body. It is involved in cellular metabolism, DNA repair pathways and the activation of sirtuins — the proteins that regulate gene expression. Published research has documented an age-related decline in NAD+ levels of roughly 1–2% per year from the third decade onward, with mid-life adults showing measurably lower NAD+ than younger cohorts.
NMN (Nicotinamide Mononucleotide) is the most direct oral precursor to NAD+ in human biochemistry. After ingestion, NMN is absorbed and converted to NAD+ inside cells. Human trials measuring the effect of oral NMN on circulating NAD+ have been published in peer-reviewed journals — see our blog post Does NMN Really Work? for the current evidence summary.
NMN Pure delivers 500mg of high-quality β-NMN, independently tested for purity — the biologically active isomer — with Black Pepper Extract (95% piperine). Nothing else. No fillers, no binders, no compromises.
What the Research Examines
Published trials of oral NMN have measured: changes in blood NAD+ levels, physical function in older adults, exercise-related parameters, and various metabolic markers. Effects are cumulative and reported over weeks-to-months of consistent dosing rather than acutely. We summarise the human trial evidence in our blog post Does NMN Really Work? An Honest Doctor's Review — including where the evidence is strong, where it is preliminary, and where claims outpace data.
Active Ingredients
- β-Nicotinamide Mononucleotide (β-NMN) — 500mg. Independently tested purity: 95.8% (Eurofins, HPLC-DAD). Made using high-quality NMN raw material, independently tested for purity.
- Black Pepper Extract (Piper nigrum, 95% piperine)
Suggested Use
1 capsule daily, in the morning, on an empty stomach or with a light meal. Morning dosing is chosen to align with the body's natural NAD+ production rhythm.
For Long-Term Supplementers
Consistency matters with NMN. If you intend to supplement long term, our NMN Plus 12 Month Supply reduces the per-month cost by over 67% versus monthly purchasing.
Pair With
For a doctor-designed daily stack, NMN Pure is commonly paired with 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. A Shilajit Complex in the morning completes the stack — together they form our Vital Energy Trio.
💰 How does Little Ox compare on price? We cost from £7.99/month vs Charava £69.99, DoNotAge £35 and Longevity Formulas £20 — for the same high-quality, independently tested NMN at the same dose. See the full comparison →
🔬 Third-party tested, every batch. View our independent Certificates of Analysis and full manufacturing certifications. See our quality assurance page →
🏪 Stocking Little Ox? We supply pharmacies, health stores and clinics wholesale across the UK. Wholesale enquiries →
Further Reading
Shipping & Returns
Shipping & Returns
Little Ox Supplements are shipped via RoyalMail Mail Tracked 48 to your home.
Orders may be cancelled at any time prior to shipment of the goods without incurring charges.
Refunds will be given at the discretion of LITTLE OX, but the general guidelines are as follows:
Any goods purchased by a customer of LITTLE OX which have been damaged in transit will be replaced free of charge.
Any undamaged goods will not be replaced unless there is a material fault with the contents.
If a return of goods and refund is requested for unused and undamaged goods, and the goods were originally shipped correctly and according to the customer’s original order, we may accept the request but there will be a 10% restocking fee to cover the administrative costs involved in processing the return. Refunds apply to the cost of goods only. Due to the limited shelf life of our products such goods will not be accepted for return and refund or replacement beyond 14 days after receipt of goods by the customer.
If it has been established by the customer, and accepted by us, that there is a material fault with the goods and a return and refund, or replacement, is requested, then this will be done with no charge to the customer.
Rejection of goods by Customs: If goods shipped to a foreign country are rejected by the Customs officials of that country and are returned to LITTLE OX, we will grant a refund for the purchase minus the cost of shipping incurred by LITTLE OX.
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Free UK Delivery
On every order, always
30 Day Returns
Hassle-free return policy
Third Party Tested
Every batch independently verified
Doctor Designed
By a practising NHS GP