Best NR Supplement 2026: Tru Niagen vs Thorne NiaCel
Thorne NiaCel 400 costs less per capsule, at $1.23 (Amazon price on November 6, 2026). Both NR products with a buyable Amazon listing are listed in NSF Certified for Sport for the pack we compare, so the choice comes down to cost and form: Tru Niagen 300mg uses Niagen (NR chloride); Thorne NiaCel 400 uses NR hydrogen malate plus betaine.
Comparison of label amounts, form, registry listings and cost. Not medical advice.
Compared by registry listing and cost, never commissions.
The two products, compared
Full data is a public CC BY JSON file.
| Product | Label, per capsule | Capsules | Per capsule | Registry |
|---|---|---|---|---|
| Thorne NiaCel 400 | 415 mg nicotinamide riboside hydrogen malate and 85 mg betaine per capsule | 60 | $1.23 | NSF Certified for Sport #1423140, 60-capsule pack listed |
| Tru Niagen 300mg | 300 mg nicotinamide riboside chloride (Niagen) per capsule | 30 | $1.63 | NSF Certified for Sport #1473227 and #1263423, 30-capsule pack listed |
Cost per capsule = Amazon price ÷ capsules. The two labels list different forms of NR (chloride and hydrogen malate), so their milligrams are not a like-for-like count of NR.
Frequently asked questions
What is the best NR supplement?
Both NR products with a buyable Amazon listing are listed in NSF Certified for Sport, so cost and form decide it. Thorne NiaCel 400 costs less per capsule ($1.23). Tru Niagen 300mg uses Niagen, a branded NR chloride. Thorne NiaCel 400 uses NR hydrogen malate and adds betaine.
Why are only two NR products compared here?
They were the only two NR products with a buyable Amazon listing when we checked. We list only products we can link to a live listing.
Is the NSF listing for the bottle I would buy?
Yes for both. NSF Certified for Sport lists Tru Niagen 300 mg in 30-, 60- and 90-capsule packs and Thorne NiaCel 400 in the 60-capsule pack, which are the packs we link.
Does the Niagen name mean better results?
Niagen is the brand name of one NR raw material. It tells you where the NR came from. It is not proof that one NR product works better than another.
Related
- NR: label facts, cost and testing
- NMN vs NR
- Third-party tested NMN — registry listings and lab reports for NMN
Sources
- NSF Certified for Sport listings 1473227, 1263423 (Tru Niagen 300 mg) and 1423140 (NiaCel 400), read 2026-10-01.
- Supplement Facts panels on the Amazon listings and Amazon prices, read 2026-10-01. Dataset: /nr/cost-by-brand.json (CC BY 4.0).