How much does Genex Formulas NMN cost?

$24.99 for 60 capsules of 125 mg. At the suggested two capsules a day that is one month, so $24.99 is also the monthly cost. The bottle holds 7.5 grams of NMN, which is about $3.33 per gram.

What does the certificate of analysis actually show?

Measured results. The assay line reads 130.51 mg of β-nicotinamide mononucleotide per capsule against a 125 mg specification. Beneath it, aerobic plate count and total yeast and mold are both under 10, E. coli, Salmonella, Staphylococcus aureus and Pseudomonas are reported absent, and mercury, lead, arsenic and cadmium are given as numbers — under 0.001, under 0.020, under 0.086 and 0.002 respectively — each marked pass. Most sellers in this category publish a graphic with tick marks and no values at all.

Is that certificate for the bottle I will receive?

No, and the page says so: beneath the results it reads "Want the COA from your batch? Send us a message!" So what is published is a representative document rather than a lot-specific one. It still tells you more than a badge does, because it shows the format and the figures the company is working to. If the batch report matters to you, ask for it before ordering and compare the assay line with the one above.

Why does the assay read higher than the label?

An overage. Manufacturers commonly fill slightly above the label claim so the product still meets it at the end of its shelf life, since actives degrade over time. Reporting 130.51 mg against a 125 mg specification is a normal result and a mildly reassuring one — it means the figure came off an instrument rather than being copied from the label.

How does 250 mg a day compare with what has been tested?

It is at the low end of the studied range. In a 2023 randomized trial in GeroScience, Yi and colleagues gave 80 healthy middle-aged adults placebo, 300, 600 or 900 mg daily for 60 days and found blood NAD rose significantly on every NMN dose, with the effect strongest at 600 mg. A separate 12-week randomized trial by Katayoshi and colleagues in Scientific Reports in 2023 used 125 mg twice a day — exactly this product's serving — in 36 healthy middle-aged adults, and reported it well tolerated.

Is Genex Formulas expensive compared with other NAD⁺ precursor supplements providers?

Genex Formulas publishes a starting figure of $24.99/mo. Across the 116 NAD⁺ precursor supplements providers we review that publish a single monthly figure, those run $17.97 to $799 with a median of $175, which puts Genex Formulas below the median, toward the cheaper end. The other 33 NAD⁺ precursor supplements providers we review quote only after an intake or price by dose, so they are not in that comparison. A starting figure is not a bill — labs, consultations and shipping are often charged separately, so confirm what your own quote includes.

Updated September 2026

Genex Formulas review

Real numbers, generic batch

The rare NMN seller whose published certificate carries measured values instead of tick marks — including an assay above its own label claim.

Our verdict

Genex publishes a certificate of analysis with actual results on it: 130.51 mg of β-NMN per capsule against a 125 mg label claim, microbial counts, and four heavy metals reported to three decimal places. That is a different order of disclosure from the checkmark graphics most of this category calls a COA, and it is the reason to consider this bottle at $24.99. Two caveats. The certificate is a representative document, not your batch — the page invites you to write in for yours. And the product is modest: 125 mg a capsule, 250 mg a day, 7.5 grams in the bottle.

Disclosure: NAD Picks is reader-supported. Some links below are affiliate links — if you start care through them we may earn a commission, at no extra cost to you. Partners are listed first; a commission never changes what we write about a provider. How we make money.

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At a glance

Category: NMN supplement
Format: Oral precursor
From: $24.99
Dose published: Yes
Prescription: Not required
Compounded: No
Updated: September 2026

What it is

A 60-capsule bottle of single-ingredient NMN at 125 mg a capsule, suggested at two capsules a day for a 250 mg daily serving. Genex also sells the same molecule at 500 mg and 1,000 mg per serving, as loose powder, and in a four-ingredient formula with TMG, quercetin and resveratrol. The company describes its NMN as shelf stabilized.

How it works

Retail, bought directly, with no consultation or subscription. Genex states that its NMN is tested, encapsulated and bottled in a GMP- and NSF-certified facility in the USA, and describes a three-phase testing process: raw materials screened for identity, potency, purity and heavy metals before production, in-process checks on weights and capsule counts, and finished-product testing before release.

Pricing transparency

$24.99, listed as both the regular and the sale price, so there is no discount being presented as the rate. Two capsules a day makes the bottle a month, which puts the monthly cost at the shelf price. The bottle holds 7.5 grams of NMN in total — about $3.33 per gram. Moving up the same catalog improves that: 500 mg a serving is $34.99 and 1,000 mg a serving is $69.99 for 120 capsules, both of which land nearer $2.30 to $2.33 a gram, so the entry bottle is the weakest value in its own range.

Branded vs compounded

A dietary supplement, not FDA-approved and not reviewed by the FDA for safety or efficacy before sale. The chemistry disclosure is the interesting part. Genex publishes the actual assay — 130.51 mg per capsule against a 125 mg specification, a 4% overage of the kind a manufacturer builds in to cover degradation over shelf life — alongside identity, microbial and heavy-metal results with real figures. Reporting an overage rather than rounding to the label claim is a sign someone is copying numbers off a laboratory report rather than designing a graphic.

Pros and watch-outs

What we like

Publishes a certificate with measured values: 130.51 mg per capsule assayed against a 125 mg claim
Heavy metals and microbial results printed as figures, not as pass marks alone
No sale price, no coupon and no subscription between you and the $24.99 rate
Single ingredient, with the milligrams stated per capsule and per serving
Cites no clinical trial at all, so there is no borrowed research to discount

Watch-outs

The published certificate is a representative one; your own batch is available only on request
125 mg a capsule means four capsules a day to reach the 500 mg many buyers want
About $3.33 per gram at this size, and better within the same brand's larger bottles
The certificate names no laboratory and carries no accreditation mark
218 customer reviews with none below five stars, which is not how review distributions normally look

Best for

A buyer who wants to see a number rather than a badge, is starting at a conservative 250 mg a day, and will ask for their own batch report.

Who should look elsewhere

Anyone taking 500 mg or more daily, who should look at the larger bottles in this same range instead of swallowing four capsules of the small one.

How Genex Formulas compares

A few alternatives worth a look, depending on what you’re optimizing for.

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Rachel Kim

Biochemistry & mechanism · Reviewed and last verified September 2026

How we assessed this. This review reflects NAD Picks’s own read of Genex Formulas’s publicly-stated model — pricing transparency, clinical oversight, medication clarity, and access — against our editorial methodology. We publish no fabricated ratings or first-hand outcomes. A partnership never changes the assessment — see how we make money.

Frequently asked

How much does Genex Formulas NMN cost?: $24.99 for 60 capsules of 125 mg. At the suggested two capsules a day that is one month, so $24.99 is also the monthly cost. The bottle holds 7.5 grams of NMN, which is about $3.33 per gram.
What does the certificate of analysis actually show?: Measured results. The assay line reads 130.51 mg of β-nicotinamide mononucleotide per capsule against a 125 mg specification. Beneath it, aerobic plate count and total yeast and mold are both under 10, E. coli, Salmonella, Staphylococcus aureus and Pseudomonas are reported absent, and mercury, lead, arsenic and cadmium are given as numbers — under 0.001, under 0.020, under 0.086 and 0.002 respectively — each marked pass. Most sellers in this category publish a graphic with tick marks and no values at all.
Is that certificate for the bottle I will receive?: No, and the page says so: beneath the results it reads "Want the COA from your batch? Send us a message!" So what is published is a representative document rather than a lot-specific one. It still tells you more than a badge does, because it shows the format and the figures the company is working to. If the batch report matters to you, ask for it before ordering and compare the assay line with the one above.
Why does the assay read higher than the label?: An overage. Manufacturers commonly fill slightly above the label claim so the product still meets it at the end of its shelf life, since actives degrade over time. Reporting 130.51 mg against a 125 mg specification is a normal result and a mildly reassuring one — it means the figure came off an instrument rather than being copied from the label.
How does 250 mg a day compare with what has been tested?: It is at the low end of the studied range. In a 2023 randomized trial in GeroScience, Yi and colleagues gave 80 healthy middle-aged adults placebo, 300, 600 or 900 mg daily for 60 days and found blood NAD rose significantly on every NMN dose, with the effect strongest at 600 mg. A separate 12-week randomized trial by Katayoshi and colleagues in Scientific Reports in 2023 used 125 mg twice a day — exactly this product's serving — in 36 healthy middle-aged adults, and reported it well tolerated.
Is Genex Formulas expensive compared with other NAD⁺ precursor supplements providers?: Genex Formulas publishes a starting figure of $24.99/mo. Across the 116 NAD⁺ precursor supplements providers we review that publish a single monthly figure, those run $17.97 to $799 with a median of $175, which puts Genex Formulas below the median, toward the cheaper end. The other 33 NAD⁺ precursor supplements providers we review quote only after an intake or price by dose, so they are not in that comparison. A starting figure is not a bill — labs, consultations and shipping are often charged separately, so confirm what your own quote includes.

Check availability →

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