Does the arterial stiffness claim hold up?

No. The DOI on that card resolves to a 2023 trial in Scientific Reports by Katayoshi and colleagues at DHC Corporation Laboratories: 36 healthy middle-aged participants took 125 mg of NMN or placebo twice a day for 12 weeks. We read the abstract in September 2026. It says pulse wave velocity, the measure of arterial stiffness, tended to decrease in the NMN group — and then states that no significant difference was found between the two groups. Jinfiniti's card reads "reduced arterial stiffness and improved elasticity, especially with metabolic risks." A trend that did not reach significance is not a reduction, and the paper says so in the same breath.

What about the 25% insulin sensitivity figure?

The trial is real and the direction is right; the framing is loose. The DOI resolves to Yoshino and colleagues in Science in 2021, a 10-week randomized, double-blind, placebo-controlled study that found NMN increased skeletal muscle insulin sensitivity and insulin signaling. Two things the card does not tell you: the participants were postmenopausal women with prediabetes who were overweight or obese, not adults in general, and no percentage appears in the abstract. Whether a healthy 45-year-old man would see anything similar is not what that study tested.

Which of their citations is accurate?

The first one. The 80-adult trial card resolves to Yi and colleagues in GeroScience in 2023, and the description — significant NAD increases, improved physical performance, stable aging markers — matches the abstract closely. Blood NAD rose significantly on 300, 600 and 900 mg a day; six-minute walking distance improved against placebo; and the blood biological age measure rose in the placebo group while staying unchanged on NMN. Worth knowing: that trial was of another company's NMN ingredient, not of Jinfiniti's formula, and the authors reported efficacy peaking at 600 mg a day.

How much does Jinfiniti NMN cost?

Pure NMN Powder is $58.00 for a 30 g jar holding 60 scoops of 500 mg — about $1.93 per gram, and two months at one scoop a day. Accuri Vitality Boost is $118.00 for 62 scoops, each carrying the same 500 mg of NMN plus 500 mg of creatine, D-ribose and niacinamide. Subscription pricing is lower, and a monthly membership at $88.00 bundles supplements with testing.

Is the NAD test worth $198?

It depends on what you would do with the answer. The honest case for it is strong: this entire category sells a molecule whose effect on you is invisible, and a measurement turns that into something you can act on — take it, retest, and stop if nothing moved. The honest case against is that a single intracellular NAD⁺ number has no established link to how you will feel or how long you will live, so what you are buying is a biomarker rather than an outcome. If the test would change your decision, it is money well spent. If you would keep taking the powder either way, it is not.

Is Jinfiniti expensive compared with other NAD⁺ precursor supplements providers?

Jinfiniti publishes a starting figure of $58/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 Jinfiniti 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

Jinfiniti review

Measure first, claims later

A seller that will also sell you the blood test to check whether its own powder worked — and one of its three cited trials found no significant effect.

Our verdict

Jinfiniti's idea is genuinely different: measure your intracellular NAD⁺, take the powder, measure again, adjust. That invitation is rare in this category, and it is the right instinct in a field where almost every claim is unfalsifiable. The plain Pure NMN Powder is a good product — 500 mg a scoop, 99.5% stated purity, one ingredient, about $1.93 a gram. The research block beneath the flagship formula is the problem. Of the three trials it cites, one is summarized correctly, one is generalized past its population, and one is described as showing reduced arterial stiffness when its abstract says no significant difference was found between the groups.

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: $58.00
Dose published: Yes
Prescription: Not required
Compounded: No
Updated: September 2026

What it is

Two different products, and it matters which one you buy. Pure NMN Powder is exactly that: a single-ingredient powder, 500 mg per scoop, 60 scoops in the 30 g jar, no other ingredients at all, mixed in water or taken sublingually. Accuri Vitality Boost is the flagship — the same 500 mg of NMN per scoop plus 500 mg of a proprietary blend of creatine monohydrate, D-ribose and niacinamide. Around both sits a testing business: an intracellular NAD⁺ test, a range of longevity blood panels, and a monthly membership that bundles supplement and test.

How it works

Retail with an optional measurement layer. No prescriber and no intake for the supplements, but the company's whole argument is that you should not dose blind: the product pages tell you to test your NAD⁺ level before starting and again afterward to set your dose. The Intracellular NAD test is $198 and the blood panels run from $398 to $1,498, so the protocol Jinfiniti recommends costs several times the powder.

Pricing transparency

Pure NMN Powder is $58.00 for the 30 g jar, which is 60 scoops of 500 mg — about $1.93 per gram and, at one scoop a day, two months. Accuri Vitality Boost is $118.00 for 62 servings; because half of each scoop is the creatine-ribose-niacinamide blend rather than NMN, its NMN content is 31 grams, putting it near $3.80 per gram of NMN with the blend included in the price. The 30 g trial size of the flagship was listed at $78.00 against an $88.00 regular price. Subscriptions cut all of these, and the membership at $88.00 a month bundles product with testing.

Branded vs compounded

Dietary supplements, not drugs: not FDA-approved and not reviewed by the FDA for safety or efficacy before sale. Pure NMN Powder is as simple as a label gets — one active, 500 mg, no other ingredients. The flagship is where the claims accumulate: a patent-pending formula said to raise NAD⁺ better than any competitive product, with no head-to-head comparison offered, and results described as guaranteed to anyone who follows the protocol. Underneath sits a research block whose three citations do not all survive being opened.

Pros and watch-outs

What we like

Sells a test that can tell you whether the supplement is doing anything, which is rare in this category
Pure NMN Powder is genuinely single-ingredient, with the panel stating 500 mg per scoop and none of anything else
About $1.93 per gram of NMN on the plain powder, with a two-month jar
Powder lets you take half a scoop or two, rather than a fixed capsule
Cites its research by DOI, so the papers can be checked rather than guessed at

Watch-outs

Describes a 12-week trial as showing reduced arterial stiffness when its abstract reports no significant difference
Reports the Science insulin trial as being in "adults", when it ran in postmenopausal women with prediabetes who were overweight or obese
Claims its formula raises NAD⁺ better than competing products with no comparison behind it
Says results are guaranteed to anyone following the protocol
The recommended protocol costs far more than the supplement, because it includes a $198 test
Half of each flagship scoop is a proprietary blend whose components are named but not individually quantified

Best for

Someone who wants to find out whether NMN is doing anything measurable in their own body, and who will buy the plain powder rather than the flagship.

Who should look elsewhere

Anyone on a budget — the testing that makes this approach worthwhile is the expensive part — and anyone who would read that research block and assume it had been checked.

How Jinfiniti compares

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

Care Bare Rx
Anyone who wants the price up front
See Care Bare Rx →
Breeze Meds
The lowest listed injection price
See Breeze Meds →
CoreAge Rx
The lowest published NAD⁺ price
See CoreAge Rx →

Compare all providers side by side →

More NAD⁺ precursor supplements reviews: Neo Soma HealthcareRylo HealthVytora HealthArc-1Remi MedsHealthOn

Laura Bennett

Evidence & trials · Reviewed and last verified September 2026

How we assessed this. This review reflects NAD Picks’s own read of Jinfiniti’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

Does the arterial stiffness claim hold up?: No. The DOI on that card resolves to a 2023 trial in Scientific Reports by Katayoshi and colleagues at DHC Corporation Laboratories: 36 healthy middle-aged participants took 125 mg of NMN or placebo twice a day for 12 weeks. We read the abstract in September 2026. It says pulse wave velocity, the measure of arterial stiffness, tended to decrease in the NMN group — and then states that no significant difference was found between the two groups. Jinfiniti's card reads "reduced arterial stiffness and improved elasticity, especially with metabolic risks." A trend that did not reach significance is not a reduction, and the paper says so in the same breath.
What about the 25% insulin sensitivity figure?: The trial is real and the direction is right; the framing is loose. The DOI resolves to Yoshino and colleagues in Science in 2021, a 10-week randomized, double-blind, placebo-controlled study that found NMN increased skeletal muscle insulin sensitivity and insulin signaling. Two things the card does not tell you: the participants were postmenopausal women with prediabetes who were overweight or obese, not adults in general, and no percentage appears in the abstract. Whether a healthy 45-year-old man would see anything similar is not what that study tested.
Which of their citations is accurate?: The first one. The 80-adult trial card resolves to Yi and colleagues in GeroScience in 2023, and the description — significant NAD increases, improved physical performance, stable aging markers — matches the abstract closely. Blood NAD rose significantly on 300, 600 and 900 mg a day; six-minute walking distance improved against placebo; and the blood biological age measure rose in the placebo group while staying unchanged on NMN. Worth knowing: that trial was of another company's NMN ingredient, not of Jinfiniti's formula, and the authors reported efficacy peaking at 600 mg a day.
How much does Jinfiniti NMN cost?: Pure NMN Powder is $58.00 for a 30 g jar holding 60 scoops of 500 mg — about $1.93 per gram, and two months at one scoop a day. Accuri Vitality Boost is $118.00 for 62 scoops, each carrying the same 500 mg of NMN plus 500 mg of creatine, D-ribose and niacinamide. Subscription pricing is lower, and a monthly membership at $88.00 bundles supplements with testing.
Is the NAD test worth $198?: It depends on what you would do with the answer. The honest case for it is strong: this entire category sells a molecule whose effect on you is invisible, and a measurement turns that into something you can act on — take it, retest, and stop if nothing moved. The honest case against is that a single intracellular NAD⁺ number has no established link to how you will feel or how long you will live, so what you are buying is a biomarker rather than an outcome. If the test would change your decision, it is money well spent. If you would keep taking the powder either way, it is not.
Is Jinfiniti expensive compared with other NAD⁺ precursor supplements providers?: Jinfiniti publishes a starting figure of $58/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 Jinfiniti 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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