Compare · NAD+
NAD+ is a coenzyme that declines with age, which is why NAD+ precursor supplements — NMN and NR — have become a cornerstone of the longevity space. This page compares well-known supplement brands and explains how at-home precursors differ from clinic-administered NAD+ therapy, so you can research the route that fits your goals and budget.
Reviewed by Gabriel Brocklesby · Last updated
Oral NMN and NR are the most accessible, lowest-cost way to target NAD+ at home. Clinic NAD+ therapy — usually IV infusion or injection — delivers NAD+ more directly, with clinician oversight, at a higher price point. Many people researching longevity weigh up both.
If you would rather have medical supervision, compare longevity clinics offering NAD+ therapy or read our guide to NAD+ therapy. A quick UK note: NMN is a novel food under assessment in Great Britain — sold and monitored but not yet authorised, and marketed as a supplement only, with no health claims.
Best for: Liposomal NMN and NR formats for higher absorption
US longevity supplement brand known for liposomal and sublingual NMN and NR formulations, with third-party testing and a broad range of NAD+ precursor products.
Format: Oral — capsules, powder, liposomal, sublingual
Best for: UK-based longevity range with a partner programme
UK longevity supplement company offering NMN and a wider healthy-aging stack. A practical UK-facing option, though NMN sold in Great Britain sits under novel-food assessment and is marketed as a supplement only.
Format: Oral — capsules and powder
Best for: Established US longevity catalogue with frequent testing data
US longevity brand with a long-running NMN and NAD+ precursor catalogue, purity testing, and price-match positioning across a wide product range.
Format: Oral — capsules, powder, lozenges
Best for: Patented NR (nicotinamide riboside) with clearer regulatory status
Consumer NR brand built on ChromaDex's patented Niagen ingredient. NR has a clearer authorised status than NMN in the UK and EU, which can make it the more straightforward precursor to discuss.
Format: Oral — capsules
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NAD+ is a coenzyme central to cellular energy that declines with age. NMN (nicotinamide mononucleotide) and NR (nicotinamide riboside) are precursors that the body converts toward NAD+. Supplements almost always contain a precursor (NMN or NR) rather than NAD+ itself, because oral NAD+ is poorly absorbed.
NMN is currently treated as a novel food that is 'under assessment' in Great Britain — it is sold and monitored by the Food Standards Agency but is not yet formally authorised, must be labelled as a food supplement rather than a medicine, and cannot carry health claims. NR has a clearer authorised status. In the US, both are widely sold as dietary supplements. This is general regulatory context, not legal advice.
They are different routes. Oral NMN/NR supplements are the lowest-cost, at-home option. Clinic NAD+ therapy — usually IV infusion or injection — delivers NAD+ more directly and is typically more expensive and clinician-supervised. Which makes sense depends on your goals, budget, and whether you want medical oversight.
Look for third-party purity and identity testing, clear labelling of the precursor and dose, a reputable manufacturer, and transparent sourcing. Be wary of brands making strong anti-aging or disease claims — the human evidence base is still developing and credible brands do not overpromise.
No. Peptide Clinic Finder is an informational directory. This page compares supplement brands and formats to help you research options; it does not diagnose, prescribe, or replace advice from a qualified clinician.
If you would rather have NAD+ therapy delivered and monitored by a clinic, compare longevity providers by oversight and treatment focus.
Planning hormone, TRT, or longevity treatment alongside this? Most clinics want recent bloodwork first — compare the best at-home blood tests in the UK.