CleanLabelReport
Supplement Review · Updated August 2026

Best NMN Supplements 2026: Ranked on Dose.

We read the labels of 29 NMN supplements. 21 put 300 mg or less in each capsule, and 11 never print a purity number. NMN is one molecule, so the dose and the purity are the whole product. One formula of 29 prints both: 500 mg per capsule, 99.9% pure.
The ProblemThe ChecksThe Ranking
Best NMN supplements 2026 ranked on milligrams per capsule, printed purity, and single-ingredient labels
The Problem

The milligrams per capsule are where most NMN bottles fall short.

NMN is a single molecule, so a bottle has exactly two things to get right: how much is in the capsule, and whether the powder is still NMN. Human trials that raised blood NAD+ ran from 250 mg to 900 mg a day, and the middle of that range, 500 to 600 mg, is where the measured changes held up best. On the 29 labels we read, 21 put 300 mg or less in each capsule. Some ask you to take two, some do not, and either way the number on the front is not the number in your hand.

Purity is the second half. NMN is expensive to make and unstable if it is made or stored badly, and degraded powder weighs exactly the same in a capsule. 11 of 29 labels print no purity figure at all. 4 more stop at 98%. A percentage on the panel, backed by a lab test, is the only way to know that 500 mg is 500 mg of NMN and not 500 mg of something that used to be.

Then there is what else is in the capsule. 8 of 29 formulas are stacks: NMN plus TMG, resveratrol, or a longevity blend, so the capsule space is shared and the NMN number shrinks. 5 of 29 still use a gelatin shell. One formula of 29 printed 500 mg of NMN in a single plant-cellulose capsule at a stated purity of 99.9%, with nothing else inside.

Took NMN for months and felt nothing? Count the capsules first.

Most disappointment in this category is arithmetic. A 250 mg capsule taken once a day is half the dose most trials used, and a stack with a big number on the front may hold less NMN than the number suggests. Read the milligrams per capsule and the purity figure on the panel. If either is missing, that is your answer.

The Checks

Four checks. Miss one, and it is not the product the trials used.

01/04

500 mg of NMN in one capsule

The daily dose the human work centers on, delivered in a single capsule so the number on the front is the number you swallow. Half of it per capsule means two a day and a bottle that runs out early, or one a day at half the dose.

β-NMN · 500 mg per capsule
02/04

Purity printed at 99% or higher

NMN degrades when it is made or stored badly, and degraded powder weighs the same. A purity percentage on the panel or the certificate of analysis, at 99% or above, is what tells you the milligrams are still NMN.

Purity · 99% or higher, stated
03/04

Single ingredient

NMN is one molecule and the dose is the whole product. When the capsule holds one active, the number on the front is the number inside. Stacks share the space, and blends hide the split.

NMN only · No stack, no blend
04/04

A plant-cellulose capsule

HPMC shells carry less moisture than gelatin, which matters for a powder that pulls water from the air, and they keep the product vegetarian. Gelatin is the cheaper default.

HPMC capsule · Not gelatin
Side by Side

The five, line by line.

Suppla NMN#1 PickProHealth Longevity NMN Pro 300#2Toniiq NMN 300#3Double Wood NMN#4Wonderfeel Youngr NMN#5
CriteriaSuppla NMNProHealth NMN Pro 300Toniiq NMN 300Double Wood NMNWonderfeel Youngr
Checks Passed4 of 42 of 42 of 42 of 41 of 4
500 mg per Capsule✓−−−−
Purity 99%+ Stated✓−−✓−
Single Ingredient✓✓✓✓−
Plant Capsule✓✓✓−✓
NMN per Capsule500 mg300 mg150 mg125 mg450 mg
Purity Stated99.9%not stated98%99%not stated
Third-Party Tested✓✓✓✓−
Our Rating9.28.58.07.67.1
Scroll the table

Doses read from each brand's published Supplement Facts panel in August 2026. Purity is the share of the powder that is intact β-NMN, as stated on the label or the brand's published certificate of analysis. Two-capsule servings are shown per capsule.

The Ranking

Top 5 NMN supplements, by the label.

No. 01
Suppla NMN
Ranked #1 of 29 labels read

Suppla NMN

β-NMN 500 mg · 99.9% Purity · Single Ingredient · 30 Capsules · 30-Day Supply

4/4 Checks500 mg per Capsule99.9% PurityThird-Party TestedGMP · Manufactured in USA60-Day Guarantee
9.2
Label Score
Strengths 09
  • 500 mg of β-NMN in one capsule, the daily dose the human trials center on.
  • Purity printed at 99.9% on the panel, not 'high purity' in the marketing.
  • One ingredient. No TMG, no resveratrol, no blend sharing the capsule.
  • Plant-cellulose HPMC capsule, gluten-free, allergen-free.
  • Serving size is one capsule, so 30 capsules is a full 30 days at 500 mg.
  • The direct NAD+ precursor, one step from the molecule your cells use.
  • Only formula of 29 that passed all four checks.
  • Third-party tested, GMP certified, manufactured in the USA.
  • 60-day money-back guarantee.
Limitations 02
  • Online only, not sold in retail stores.
  • One bottle is exactly 30 days; there is no 60-count size yet.
The verdict Most NMN bottles either split the dose across two capsules or leave the purity to your imagination. This one prints 500 mg per capsule and 99.9% purity on the same panel, with nothing else in the capsule. It is the only bottle of the 29 we read that passed all four checks, and it is the one we would take ourselves.
See Price and Availability ✓ 60-Day Money-Back Guarantee
The runners-up · 02 to 05
ProHealth Longevity NMN Pro 300
No. 02

ProHealth Longevity NMN Pro 300

Vegetable Capsule · Uthever NMN 300 mg per Capsule · Single Ingredient · 30 Capsules · Rice Flour
2 of 4Studied IngredientThird-Party Tested
8.5
Label
Strengths
  • Uses Uthever NMN, the branded ingredient with a published placebo-controlled human study behind it.
  • Single ingredient in a vegetable capsule, one capsule per serving.
  • Every batch third-party tested in US labs, by the brand's own statement.
Limitations
  • 300 mg per capsule, 40% below the 500 mg line; the label suggests one to three capsules to make up the difference.
  • No purity percentage on the panel or the product page.
  • Rice flour filler in the capsule.
The verdict A clean, well-tested capsule from a brand that takes NMN seriously. The gaps are the dose and the missing purity figure: 300 mg means taking two to reach the studied amount, and nothing on the label tells you how pure the powder is. A strong second.
Toniiq NMN 300
No. 03

Toniiq NMN 300

Vegetarian Capsule · NMN 150 mg per Capsule · 300 mg per 2-Capsule Serving · 98% β-NMN · 60 Capsules
2 of 498% PurityLab Tested
8.0
Label
Strengths
  • Purity is printed on the panel: 98% β-NMN, which is more than most labels give you.
  • Single ingredient in a vegetarian capsule.
  • Every lot lab tested for identity, potency, and heavy metals, by the brand's statement.
Limitations
  • 150 mg per capsule; the 300 mg on the front is a two-capsule serving.
  • 98% purity is honest, but it sits below the 99% line the better powders reach.
  • Magnesium stearate and silica in the capsule.
The verdict The most transparent label after the winner: the purity is printed and the testing is real. The dose is the problem. 150 mg per capsule means four capsules a day to reach the studied amount, and the bottle empties in two weeks if you do.
Double Wood NMN
No. 04

Double Wood NMN

Gelatin Capsule · NMN 125 mg per Capsule · 250 mg per 2-Capsule Serving · 60 Capsules
2 of 4BudgetThird-Party Tested
7.6
Label
Strengths
  • Purity stated at 99% on the listing, backed by a published certificate of analysis.
  • Single ingredient, third-party tested, low price per bottle.
  • Easy to find, established brand.
Limitations
  • 125 mg per capsule; the 250 mg on the front is a two-capsule serving, half the studied dose.
  • Gelatin capsule with rice flour, not vegetarian.
  • The purity figure lives on the listing and the COA, not on the Supplement Facts panel.
The verdict Affordable and honest about what it is. The gaps are size and shell: 125 mg per capsule is a quarter of the studied dose, and the gelatin capsule rules it out for a vegetarian routine. Fine as a starter, not the product the trials tested.
Wonderfeel Youngr NMN
No. 05

Wonderfeel Youngr NMN

Cellulose Capsule · NMN 450 mg per Capsule · 900 mg per 2 Capsules · Resveratrol · Olive Extract · Ergothioneine · D3
1 of 4StackPremium Price
7.1
Label
Strengths
  • The largest daily NMN total in the group, 900 mg across two capsules.
  • Adds trans-resveratrol, an olive extract, ergothioneine, and vitamin D3, each with a dose printed.
  • Vegan cellulose capsule.
Limitations
  • No purity percentage anywhere on the label.
  • A five-ingredient stack: the capsule is shared, and you cannot adjust one dose without the others.
  • 450 mg per capsule, so one capsule is under the line and two is a premium-priced day.
  • No third-party testing statement we could find.
The verdict A big NMN number wrapped in a longevity stack. The total is generous, but nothing on the label tells you the powder's purity, and the extra actives lock you into their doses. If you want NMN, this is a lot of other things too.
What Changes, When

What to expect at 500 mg a day.

Week 02 to 04

Steadier daytime energy

Blood NAD+ responds within the first weeks at a real dose. Fewer afternoon dips is what most people notice before anything else.

Week 04 to 08

Recovery and sleep

Workouts feel easier to bounce back from, and sleep tends to feel more restorative. This is the window where a half-dose bottle usually stalls.

Week 08 to 12

The cellular long game

The trials that measured physical performance ran 6 to 12 weeks. Consistent daily use is what those results were built on.

FAQ

Questions we get asked.

Two numbers first: 500 mg of NMN in one capsule, and a purity figure at 99% or higher printed on the panel or the certificate of analysis. Then a single-ingredient label with no stack or blend, and a plant-cellulose capsule. If either number is missing, keep looking.
It is a smaller product, not a smaller version of the result. The trials that measured a change in blood NAD+ and physical performance mostly used 500 mg or more a day. At 250 mg per capsule you need two capsules to match them, and the bottle lasts half as long.
Most people notice steadier daytime energy within 2 to 4 weeks. Recovery and sleep tend to follow across weeks 4 to 8. The published trials ran 6 to 12 weeks, so give it that long before judging.
Yes. NAD+ is spent every day and rebuilt every day, so NMN is a daily supplement, not a short course. Morning, with or without food, is the routine most people settle into.
What we would buy

One molecule. Full dose. Purity printed.

One formula of 29 passed all four checks. This is it.

Our top pick
Suppla NMN
Suppla NMN
Suppla · 30 capsules
9.2 / 10
  • 500 mg of β-NMN in one capsule
  • 99.9% purity, printed on the panel
  • Single ingredient in a plant-cellulose capsule
  • Only formula of 29 that passed all four checks
  • Third-party tested, GMP certified, manufactured in the USA
See Price and Availability →
✓ 60-Day Money-Back Guarantee
The Evidence

Why the dose and the purity decide it.

Placebo-controlled human trials have reported that oral NMN raises blood NAD+ levels, with daily doses of 250 to 900 mg studied over 4 to 12 weeks. Trials at those doses have reported support for measures of physical performance and metabolic markers in specific groups, and a dose-response study found the larger doses did more than the smallest. What the work agrees on is simple: the dose has to be there, and the compound has to be intact. That is why purity sits next to dose in our checks.

References

  1. Yoshino M, et al. Nicotinamide mononucleotide increases muscle insulin sensitivity in prediabetic women. Science. 2021. PubMed
  2. Okabe K, et al. Oral administration of nicotinamide mononucleotide is safe and efficiently increases blood nicotinamide adenine dinucleotide levels in healthy subjects. Front Nutr. 2022. PubMed
  3. Yi L, et al. The efficacy and safety of β-nicotinamide mononucleotide (NMN) supplementation in healthy middle-aged adults: a randomized, multicenter, double-blind, placebo-controlled, parallel-group, dose-dependent clinical trial. Geroscience. 2023. PubMed
  4. Liao B, et al. Nicotinamide mononucleotide supplementation enhances aerobic capacity in amateur runners: a randomized, double-blind study. J Int Soc Sports Nutr. 2021. PubMed
  5. Igarashi M, et al. Chronic nicotinamide mononucleotide supplementation elevates blood nicotinamide adenine dinucleotide levels and alters muscle function in healthy older men. NPJ Aging. 2022. PubMed

Editorial Disclosure

Affiliate Disclosure: We may earn a commission when you click links on this page and make a purchase. Placements are decided from each product's published label data measured against the criteria on this page. Competitor formulas reflect each brand's publicly listed specifications as of the update date shown and may vary by SKU or batch. Brand names belong to their respective owners and are referenced for comparison only. Competitor information reflects publicly available labels as of August 2026.

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Talk to your healthcare provider before starting any supplement, especially if you take medication, are pregnant, or nursing.

© 2026 Clean Label Report. All rights reserved.

Suppla NMN
9.2 / 10 · #1 of 29 labels
See Price and AvailabilitySee Price →

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