EnduNAD Review 2026Is It Worth the Money?
by Endunad
|Medically Reviewed by Editorial Team
EnduNAD is a "NAD+ booster" capsule sold online for €46.99 or $53.99 a bottle. Our link lands on the Italian-language site, priced in euros; an English site in US dollars also exists. The full label is printed on the sales page.
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Score Breakdown
Pros & Cons
Pros
- Full label printed on the sales page
- Niacinamide within the NHS safe level
- EGCG well under the label's cap
Cons
- No NMN, NR or other studied NAD+ precursor
- Trigonelline: animal and cell evidence only
Who Is This For?
Recommended For:
We would not recommend it. Its niacinamide is ordinary vitamin B3, and its headline NAD+ ingredient, trigonelline, has only animal and cell evidence at a 6 mg dose.
Not Recommended For:
Pregnant or breastfeeding women and children (the label's own exclusion); anyone already taking other green tea extract or high-dose vitamin B3 supplements; people allergic to fenugreek; and anyone taking prescription medicines without checking with a doctor.
Summary
What is in it, per 2 capsules: fenugreek extract 300 mg (6 mg trigonelline), niacinamide 250 mg, L-tryptophan 200 mg, chamomile 150 mg, green tea 150 mg (60 mg EGCG), grape extract 50 mg, alpha-lipoic acid 50 mg, black pepper extract 2 mg and vitamin B6 2.8 mg.
It contains no NMN, NR, spermidine, fisetin or omega-3 (an earlier version of this review compared it with those).
What the evidence says:
- Trigonelline raised NAD+ in worms, mice and cells. There is no human supplementation trial.
- Niacinamide is vitamin B3. The one human NAD+ study the seller cites used a different form, nicotinic acid, at 750 to 1,000 mg a day.
- The only health claims the label rests on are the standard ones for niacin and B6, such as reducing tiredness.
There is no money-back guarantee on the sales page; the terms allow 10 days from purchase.
Ingredient Breakdown
The label, ingredient by ingredient, with the best human evidence.
- Fenugreek extract [2% trigonelline], 300 mg (6 mg trigonelline). A 2024 study cited by the seller found trigonelline "increases NAD+ levels in C. elegans, mice and primary myotubes", and improved muscle strength in male mice. In people, the study only observed that blood trigonelline is lower with muscle loss. Most authors worked for Nestlé.
- Niacin as niacinamide, 250 mg (1,563% of the daily reference). The seller cites a trial in which nicotinic acid, a different form of vitamin B3, at 750 to 1,000 mg a day for 4 to 10 months raised blood NAD+ up to 8-fold. EnduNAD uses a different form at about a quarter of that dose.
- L-tryptophan, 200 mg. We found no NAD+ trial.
- Green tea [40% EGCG], 150 mg (60 mg EGCG). Below the 800 mg a day limit printed on the label.
- Grape extract (1 mg resveratrol), alpha-lipoic acid 50 mg, chamomile 150 mg, vitamin B6. No NAD+ outcome trials found.
What is not in it: no NMN, nicotinamide riboside (NR), spermidine, fisetin, sulforaphane or omega-3. NR is the precursor with human data: in a 6-week crossover trial it was "well tolerated and effectively stimulates NAD+ metabolism".
What EnduNAD actually contains
| Ingredient | On the label | In the trials |
|---|---|---|
| Alpha-lipoic acid | 50 mg | 300 mg17% |
| Green tea | 60 mg EGCG | 250 mg EGCG24% |
Amounts are taken from the manufacturer’s own supplement facts panel. Where a label states a standardisation, the active fraction is what we compare, because the active is what the trials measured.
Dosage Analysis
Our Dose Check compares each label amount with the best human study.
- Trigonelline: 6 mg vs no human supplementation trial. Animal and cell data only.
- Niacinamide: 250 mg vs 750 to 1,000 mg a day of nicotinic acid, a different form. About a quarter of the dose, in another form.
- L-tryptophan: 200 mg vs no NAD+ trial.
- EGCG: 60 mg, under the label's own 800 mg a day ceiling.
- Resveratrol: 1 mg, a trace amount.
- NMN, NR, spermidine, fisetin, omega-3: zero.
The label says 2 capsules a day with 300 ml of water, and "Non consumare a stomaco vuoto" (do not take on an empty stomach). A bottle of 60 lasts a month. The page's badge says "fast acting", but its FAQ says full benefits need at least 2 to 3 months.
Quality & Testing
Our Transparency Score checks five things a buyer can verify. EnduNAD scores 2 out of 5.
- Label with doses: yes. Every ingredient is dosed on the sales page itself.
- Identifiable company: no. The terms name only "EnduNAD.it, Stanley Street, Hong Kong", under Hong Kong law. It is also sold by NuviaLab Limited. The page says "made in Europe"; no manufacturer is named.
- Refund terms in writing: yes. 10 calendar days from purchase, unused goods only.
- Independent testing shown: no.
- Study on the finished product: no. The seller's references cover other forms, other doses or other species.
NuviaLab, the co-seller, has 1.9 out of 5 from 148 reviews on Trustpilot; none we read mentioned EnduNAD.
Correction. An earlier version of this review benchmarked EnduNAD against NMN, spermidine, fisetin and omega-3, which it does not contain, and said its doses were within or above the studied range. It also claimed GMP certification, a $42 price, subscription pricing, a 90-day guarantee and free shipping, warned about omega-3, and gave conflicting scores. We have corrected it.
Value for Money
Prices when we checked in September 2026:
- Italian site (where our link leads, in Italian): €46.99 for 1 bottle, €126.87 for 3 (€42.29 each), €225.55 for 6 (€37.59 each). Shipping is €8 by card or €14 cash on delivery; only the 6-pack ships free.
- US site: $53.99, $145.77 and $259.15. NuviaLab: $59.99, $161.97 and $287.95.
Refunds. Neither the Italian nor the English sales page offers a money-back guarantee. The terms say the customer may withdraw only "entro 10 giorni di calendario dalla data di acquisto della merce", after a written statement, and that items "non possono recare segni di uso" (must show no signs of use). They add: "Il diritto della UE non è applicabile" (EU law does not apply).
Side Effects & Safety
- Niacinamide: the NHS says "500mg or less of nicotinamide supplements a day, is unlikely to cause any harm". EnduNAD's 250 mg is within that. Skin flushing is linked to high doses of nicotinic acid, a different form, not to niacinamide.
- Green tea EGCG: the label says "Do not consume a daily amount of 800 mg of (-)-epigallocatechin-3-gallate or more". EnduNAD supplies 60 mg, so count any other green tea extract you take.
- Empty stomach: the label says not to take it on one.
The sales page promises "Muscoli più forti" (stronger muscles) and "Controllo efficace del peso" (effective weight control). No ingredient is at a trial dose for either. There is no clinical study on EnduNAD itself.
Final Verdict
Our Verdict
EnduNAD publishes a full label, and its doses look safe. But it is not the NMN or NR product many buyers expect. Its "NAD+ precursors" are 6 mg of trigonelline, tested only in animals and cells, and 250 mg of niacinamide, which is ordinary vitamin B3. There is no study of the formula. The seller is a Hong Kong web domain offering 10 days to cancel, and our link lands on an Italian page priced in euros. We do not recommend it. Sources: [Membrez et al. 2024, trigonelline and NAD+](https://pubmed.ncbi.nlm.nih.gov/38504132/) · [Pirinen et al. 2020, niacin and NAD+ in mitochondrial myopathy](https://pubmed.ncbi.nlm.nih.gov/32386566/) · [Martens et al. 2018, nicotinamide riboside trial](https://pubmed.ncbi.nlm.nih.gov/29599478/) · [NHS, vitamin B](https://www.nhs.uk/conditions/vitamins-and-minerals/vitamin-b/) · [FDA, NMN citizen petition docket](https://www.regulations.gov/docket/FDA-2023-P-0872) · EnduNAD label and terms, checked 28 September 2026.
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Medical Disclaimer
The content on this page is for informational purposes only and is not intended as medical advice, diagnosis, or treatment. Always consult your physician or qualified healthcare provider before starting any new supplement regimen. Individual results may vary.