Quick answer: Wonderfeel Youngr is a higher-dose, multi-ingredient NMN formula at a higher price. CELLSHE NMN 500 is a single-ingredient product at a lower dose. Neither is proven better in the body. It comes down to whether you want a formula that makes several decisions for you, or one ingredient you control.
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 Wonderfeel Youngr™ NMN, side by side
| As of August 1, 2026 | CELLSHE NMN 500 | Wonderfeel Youngr™ NMN |
|---|---|---|
| Active ingredient and dose | 500 mg beta-NMN per capsule, single active ingredient | 900 mg NMN per 2-capsule serving (450 mg per capsule), plus 100 mg trans-resveratrol, 4 mg ergothioneine, 50 mg olive-fruit extract and 20 mcg vitamin D3 per serving |
| Servings per bottle | 30 servings (1 capsule daily) | 60 vegan capsules, 30-day supply |
| Price | $49 one-time; $39 on subscription | $88 one-time; $73 on subscription |
| Testing | Third-party Certificate of Analysis on file, available on the product page or on request | The brand publishes COAs and states cGMP manufacture and third-party lab testing |
| Manufacturing | Manufactured in the USA using globally sourced ingredients | The brand states cGMP manufacture |
| Membership program | A personal welcome and an email concierge with every order. Subscribe and you join The CELLSHE Circle: a monthly, course-style guide program and a personal call you can book by email. | No membership program stated on the captured page (August 1, 2026) |
For how Wonderfeel stacks up against the wider field, see our full NMN supplement comparison.
What Wonderfeel Youngr™ NMN does well
Credit where it is due. When a competitor gets the fundamentals right, we would rather say so than pretend otherwise.
- A higher NMN dose. 900 mg per 2-capsule serving.
- A genuinely considered formula. Trans-resveratrol, ergothioneine, olive-fruit extract and vitamin D3 alongside the NMN.
- Published COAs. The brand publishes COAs and states cGMP manufacture and third-party lab testing.
- Subscription pricing. $73 per month against $88 one-time.
Where CELLSHE is different
We are not going to argue that our capsule is secretly superior. On the label, good NMN 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 each month 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. CELLSHE NMN 500 falls between the 300 mg and 600 mg doses evaluated in a 60-day dose-ranging trial. Both doses increased blood NAD+, while 600 mg produced a greater increase than 300 mg. Increasing the dose to 900 mg did not produce a statistically significant additional increase over 600 mg, suggesting diminishing returns above that level in this study. PMID 36482258
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 Wonderfeel Youngr™ NMN if you want a higher NMN dose and prefer a multi-ingredient formula that bundles the decisions, and you are comfortable with the higher price per bottle.
Choose CELLSHE NMN 500 if you would rather take one disclosed ingredient and decide for yourself what else belongs in your routine, and you want a person and a monthly program behind the purchase.
See NMN 500, explore The Cellular Trio, or start with the free Cellular Age Check.
Frequently asked questions
Is Wonderfeel or CELLSHE better?
Wonderfeel is a multi-ingredient formula at $88. CELLSHE gives you one disclosed 500 mg beta-NMN active for $49, with a personal welcome, an email concierge and The CELLSHE Circle on subscription. It is a formula-versus-control decision.
Is more NMN better?
Not necessarily. In a 60-day dose-ranging trial, 300, 600, and 900 mg per day all increased measured blood NAD concentrations. However, 900 mg did not produce significantly better overall efficacy than 600 mg. In this study, more milligrams did not clearly mean more benefit. PMID 36482258
Is Wonderfeel third-party tested?
As of August 1, 2026, Wonderfeel states that its products are manufactured in a cGMP-compliant facility and tested by independent third-party laboratories. The brand also publishes several Certificates of Analysis from prior years on a dedicated page of its website.
CELLSHE makes a third-party Certificate of Analysis available on the product page or on request.
Why is CELLSHE single-ingredient?
So you can see exactly what you are taking and change one thing at a time. Multi-ingredient formulas can be excellent, but they make several decisions on your behalf and make it harder to tell what is doing what.
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.
- Youngr™: Wonderfeel, proprietary finished formula
References
- 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
- 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
- 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
- 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
- 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
- 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
