Best of
Best NAD Supplement: What to Look For and NR Picks
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We don't sell supplements; brands can't pay for placement; rankings use published testing and price per daily dose. How we rank
Independent of the brands we list: commission never changes a ranking. How we choose: form and dose, independent testing, ingredients and price per serving.
Affiliate disclosure: some links on this page are affiliate links. If you buy through them we may earn a commission at no extra cost to you. Commission never changes how we rank products. This is general information, not medical advice.
NAD+ is a molecule involved in how your cells make energy. What shops call an “NAD supplement” is usually a precursor, a building block the body can use to make NAD+. The one we can compare with solid price data is nicotinamide riboside (NR). The evidence is thin (we rate it D): NR raises blood NAD+, but human trials have not shown clear health benefits. For background, read what NAD+ is and why it matters and the NR guide. We do not rank injections or IV products (see NAD injections), and we do not list NMN products.
Short answer: Best overall: Tru Niagen 300 mg; Best budget: Vitality Pro NR 300 mg. Prices, testing and every shop are in the picks below.
Quick picks
| Pick | Product | Best for | Price | Buy |
|---|---|---|---|---|
| Best overall | Tru Niagen 300 mg, 30 capsules | Readers who want named testing programs and are happy to pay more | $1.63 per 300 mg NR ($49.00 ÷ 30 servings; checked Nov 1, 2026 at Tru Niagen) | Tru Niagen (affiliate link) +4 more |
| Best budget | NR (nicotinamide riboside chloride) 300 mg, 90 capsules | Readers who want the lowest price per daily dose | £0.544 per 300 mg NR (£49.00 ÷ 90 servings; checked Nov 1, 2026 at Vitality Pro) | Vitality Pro (affiliate link) |
Our ranked picks
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Best overall
Tru Niagen 300 mg, 30 capsules
A 300 mg nicotinamide riboside chloride capsule from the brand that sells under the Tru Niagen name. It is the only NR product in our data that names certification programs.
Pros
- Names three testing programs (NSF Certified for Sport, Alkemist Assured, TESTED by SuppCo), all as brand statements
- Batch certificates of analysis by lot number on the brand site, per our product data
- Sold on the brand site in the US and through Healf in the UK
Cons
- Highest price per daily dose on this page in both $ and £
- Testing claims are the brand's own; check the NSF listing for the exact product before relying on it
- Amazon.co.uk, Amazon.com and iHerb prices are not verified
United States
United Kingdom
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Best budget
NR (nicotinamide riboside chloride) 300 mg, 90 capsules
A 300 mg nicotinamide riboside chloride capsule in a 90-capsule pack, with batch purity results published by the brand.
Pros
- Lowest price per daily dose on this page in both £ and $
- Publishes batch purity results from ISO 17025-accredited labs (brand statement)
- UK-made, per our product data
Cons
- No named certificate such as NSF or Informed Sport; the testing is the brand's own published results
- The brand page says 1 to 2 capsules; our price assumes 1 capsule (300 mg), so 2 capsules would cost twice as much a day
United Kingdom
How we rank
We only rank products that are in our product data file, and we use only what that file records:
- Form and amount. All products here are capsules with 300 mg of NR chloride each. We compare the amount of NR itself, not the weight of the pack, and we price one capsule a day.
- Third-party testing, as listed. We note a named testing program (for example NSF Certified for Sport) when our data lists one. Where the data says “brand statement”, we say so and do not count it as verified by us.
- Price per daily dose. We divide the pack price by the servings per pack, then scale to our basis: 300 mg of nicotinamide riboside (NR) chloride a day, which is 1 capsule of each product. Prices in different currencies are not converted, so $ and £ are only compared within their own currency.
Winner labels. “Best overall” goes to the cheapest product with a named testing program in that currency. “Best budget” goes to the lowest price per daily dose in that currency, whatever the testing. “Best tested” is only used when one product lists clearly more named programs than the rest. If no product qualifies for a label, we leave that label out.
Only two products. Our data holds two NR products, so each label is chosen from just two options. Use the picks as a starting point, not a full survey of the market.
Brand statements. Every testing claim for NR in our data comes from the brand’s own pages, not from a certificate we checked. We repeat them as claims.
What we did not do. We have not tested these products ourselves, in a lab or by taking them. We did not rank by commission. Prices change, so each price shows the date it was checked. More in How we rank.
Price per daily dose
Basis: 300 mg of nicotinamide riboside (NR) chloride a day, which is 1 capsule of each product. Every number below is worked out from the pack price, servings per pack and amount per serving in our product data.
US dollar prices ($)
| Product (retailer) | Amount per serving | Pack price (checked) | Price per serving | Price per daily dose | Testing named in our data |
|---|---|---|---|---|---|
| Vitality Pro NR (nicotinamide riboside chloride) 300 mg, 90 capsules (Vitality Pro) | 300 mg nicotinamide riboside chloride (1 capsule) | $75.00 (Nov 3, 2026) | $75.00 ÷ 90 = $0.833 | $0.833 | Independent batch testing by ISO 17025-accredited labs, results published on the product page (brand statement) |
| Tru Niagen 300 mg, 30 capsules (Tru Niagen) | 300 mg nicotinamide riboside chloride (1 capsule) | $49.00 (Nov 1, 2026) | $49.00 ÷ 30 = $1.63 | $1.63 | NSF Certified for Sport (brand statement); Alkemist Assured / Alkemist Labs (brand statement); TESTED by SuppCo (brand statement) |
UK prices (£)
| Product (retailer) | Amount per serving | Pack price (checked) | Price per serving | Price per daily dose | Testing named in our data |
|---|---|---|---|---|---|
| Vitality Pro NR (nicotinamide riboside chloride) 300 mg, 90 capsules (Vitality Pro) | 300 mg nicotinamide riboside chloride (1 capsule) | £49.00 (Nov 1, 2026) | £49.00 ÷ 90 = £0.544 | £0.544 | Independent batch testing by ISO 17025-accredited labs, results published on the product page (brand statement) |
| Tru Niagen 300 mg, 30 capsules (Healf) | 300 mg nicotinamide riboside chloride (1 capsule) | £40.99 (Nov 1, 2026) | £40.99 ÷ 30 = £1.37 | £1.37 | NSF Certified for Sport (brand statement); Alkemist Assured / Alkemist Labs (brand statement); TESTED by SuppCo (brand statement) |
Bigger packs can lower the daily cost. In our data the Tru Niagen 90-capsule pack is $127.00 in the US (÷ 90 = $1.41 a day) and £109.99 at Healf in the UK (÷ 90 = £1.22 a day). Vitality Pro’s 180-capsule pack is £93.00 (÷ 180 = £0.52 a day). We rank on the pack sizes in the table above.
Prices checked on the dates shown. Brands also offer subscribe-and-save discounts that are not included here.
How to start
Check what the label really contains. The ingredient should say nicotinamide riboside (often “NR chloride”) with the milligrams per capsule, and you should compare products by price per daily dose, not pack price. Studies used 100 to 1,000 mg a day for 6 to 10 weeks; those are study amounts, not recommendations. If you are unsure whether you need any of this, a better first step is sleep, activity and food. Our beginners’ guide shows where supplements fit.
Talk to your doctor or pharmacist
Talk to your doctor or pharmacist before you start any supplement, especially if you are pregnant or breastfeeding, take prescription medicine, or have a health condition. This matters most if you take regular medicine, or have kidney or liver problems. The full guide has the evidence, safety notes and citations.
How we chose
"NAD supplement" usually means an NAD+ precursor. We compared the precursor products in our data (NR capsules) by form and amount, named testing and price per daily dose. We have not tested them ourselves.
FAQ
What is the best NAD supplement?
Of the NAD precursors in our data, Tru Niagen has the most named testing information (brand statements) and Vitality Pro has the lowest price per daily dose. Both are NR capsules with 300 mg per capsule. No NAD product has been shown to improve health in humans.
Can you take NAD+ directly?
Shop products sold as NAD+ itself are not what this page compares. Most supplements use precursors such as NR. For injections and IV drips, read our explainer; we do not rank them.
Is an NAD supplement worth it?
The evidence is limited. NR raises NAD+ in the blood, but a 2023 review of 25 human studies found few clinically relevant effects (details in the evidence guide). It is not a proven way to slow aging.
Do NAD boosters have side effects?
In the short trials we cite, NR was well tolerated, with no significant difference in side effects from placebo. Trials are small and short, though, so rarer or long-term effects can’t be ruled out. Check the evidence guide and ask a doctor or pharmacist if you take other medicines.
This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Medical disclaimer