Tru Niagen Review: An Honest Look at the NR Brand — and Its Alternatives

Quick answer: Tru Niagen is a well-established, well-tested single-ingredient product, but it is a different molecule from ours. It uses nicotinamide riboside (NR); CELLSHE NMN 500 uses beta-NMN. Both are NAD+ precursors, neither is proven better in the body, and both are the same $49 one-time. The real difference is what comes with the purchase.

Disclosure and method. CELLSHE publishes this article and sells CELLSHE products that appear in it, so treat this as a brand comparison, not independent journalism. Every competitor figure below is taken from that brand's own official product page and was verified on August 1, 2026. Prices, formulas and offers change often, and some pages localize price by country, so confirm current details on each brand's site before you buy. Where a brand states something we cannot independently verify, such as purity or testing, we say the brand states it.

CELLSHE NMN 500 vs Tru Niagen 300mg, side by side

Note: The page displays more than one subscription figure, so treat $44.10 as the buy-box price on the capture date.

One thing to keep straight: nicotinamide riboside and beta-NMN are different molecules. Comparing their milligrams as if they were interchangeable would be misleading, so we do not do it, and you should be skeptical of any chart that does.

What Tru Niagen 300mg does well

Credit where it is due. When a competitor gets the fundamentals right, we would rather say so than pretend otherwise.

• A serious testing posture. The brand states third-party testing by Alkemist Labs which is a genuinely high bar.
• One disclosed active. 300 mg of NIAGEN® nicotinamide riboside per capsule, with no proprietary blend to decode.
• Size options. A 30-count default with 90-count and 180-count also sold.

Where CELLSHE is different

We are not going to argue that our capsule is secretly superior. On the label, good NAD+ related precursors products look alike, and that is exactly the point most brands avoid. What CELLSHE is built to be different on is everything around the bottle.

• A single active, disclosed plainly. One ingredient, one dose, stated on the front of the label. Nothing to reverse-engineer.
• Testing you can actually see. A third-party Certificate of Analysis is on file and available on the product page or on request. Ask us for it and a person sends it to you.
• A real person, not a ticket queue. Every order comes with a personal welcome and an email concierge you can write to.
• The CELLSHE Circle, included with any subscription. A monthly, course-style guide program that builds month over month, plus a personal call you can book by email. It exists because the hardest part of a longevity routine is not choosing the bottle, it is still taking it in month four and understanding why.

That is the honest trade. If the lowest cost per milligram is what you are optimizing for, we are not that. If you want a clean single-ingredient formula plus the guidance to use it properly, that is what your money buys here.

What the evidence actually supports

This is the part most comparisons skip, so here it is plainly. NMN is a precursor your body uses to make NAD+, and several randomized controlled trials have measured higher circulating NAD+ after people took oral NMN. That includes a placebo-controlled trial at 250 mg per day over 12 weeks (PMID 35479740), a dose-ranging trial across 300, 600 and 900 mg per day (PMID 36482258), and a more recent trial at 1,000 mg per day (PMID 41540253).

The limit matters as much as the finding. Circulating NAD+ is a biomarker, not an outcome. Reviews of the human trials to date report that broader metabolic benefits are not established (PMID 39116016, PMID 42514320). So NMN supports NAD+ biosynthesis*, and no honest brand can promise you energy, sharper thinking, weight change, slower aging or anything a doctor treats.

On the 500 mg question. No trial in this set tested exactly 500 mg per day. CELLSHE's 500 mg sits between the 300 mg and 600 mg arms of that dose-ranging trial, both of which raised NAD+, with the effect peaking at 600 mg (PMID 36482258). That is a reasonable read of the dose range, not a direct test of our exact dose, and we would rather say so than imply a trial we do not have.

One more correction worth knowing, because a lot of marketing still repeats the old version: whole-blood NAD+ measured across seven cohorts stayed broadly stable with age (PMID 42135539). The honest framing is supporting your NAD+ capacity*, not correcting a deficit you have been told you have.

Which one is for you

Choose Tru Niagen 300mg if you prefer nicotinamide riboside, third-party testing by Alkemist Labs, and want NSF Certified for Sport on the label.

Choose CELLSHE NMN 500 if you want a single-ingredient beta-NMN formula with the Certificate of Analysis available on the product page or on request, and you want the guidance and human support that comes with it.

See NMN 500, explore The Cellular Trio, or start with the free Cellular Age Check.

Frequently asked questions

Is Tru Niagen or CELLSHE better?

They are different molecules, so neither is proven better in the body. Tru Niagen uses nicotinamide riboside (NR) at 300 mg per capsule, at the same one-time price. CELLSHE uses beta-NMN at 500 mg per capsule and includes a personal welcome, an email concierge and, on subscription, The CELLSHE Circle. Choose by what matters most to you.

Is NMN or NR better for raising NAD+?

Both are NAD+ precursors and both have human trials behind them, but there is no head-to-head sufficient trial evidence establishing one as superior, and we will not claim one. Circulating NAD+ is a biomarker, not a health outcome.

Is Tru Niagen third-party tested?

As of August 1, 2026 the brand states third-party testing by Alkemist Labs. CELLSHE makes a third-party Certificate of Analysis available on the product page or on request. Confirm current details on each brand's site.

Does CELLSHE cost more than Tru Niagen?

No. Both are $49.00 one-time, and CELLSHE is a little lower to subscribe, $39 versus $44.10, as of August 1, 2026. CELLSHE includes a personal welcome and email concierge with every order, and The CELLSHE Circle with any subscription.

Trademarks and non-affiliation

All third-party names and trademarks belong to their respective owners. Their use here is for identification and comparison only and does not imply affiliation, sponsorship or endorsement. CELLSHE is not affiliated with any brand named on this page.

• NIAGEN®: ChromaDex, Inc. (Niagen Bioscience), nicotinamide riboside (NR)

References

1. Okabe K, et al. (2022). Randomized, double-blind, placebo-controlled trial of NMN 250 mg/day for 12 weeks (N=30). Frontiers in Nutrition. PMID: 35479740. pubmed.ncbi.nlm.nih.gov/35479740
2. Yi L, et al. (2023). Multicenter, double-blind, dose-ranging RCT of NMN at 300, 600 and 900 mg/day for 60 days (N=80); NAD+ rise peaked at 600 mg. GeroScience. PMID: 36482258. pubmed.ncbi.nlm.nih.gov/36482258
3. Christen S, et al. (2026). Open-label, placebo-controlled RCT of NMN 1,000 mg/day for 14 days (N=65). Nature Metabolism. PMID: 41540253. pubmed.ncbi.nlm.nih.gov/41540253
4. Zhang J, et al. (2025). Systematic review and meta-analysis; 12 studies, 513 participants; NAD+ biomarkers rose while metabolic outcomes were non-significant. Critical Reviews in Food Science and Nutrition. PMID: 39116016. pubmed.ncbi.nlm.nih.gov/39116016
5. Yang W, et al. (2026). Systematic review and meta-analysis of 15 RCTs; broad metabolic benefits were not evident. Nutrients. PMID: 42514320. pubmed.ncbi.nlm.nih.gov/42514320
6. Tretowicz MM, et al. (2026). Multi-cohort analysis across seven cohorts (~303 individuals); whole-blood NAD+ was stable with age. Nature Metabolism. PMID: 42135539. pubmed.ncbi.nlm.nih.gov/42135539