Bevisning gates dose: the evidence grade sets the ceiling, and the dose decides how much of that ceiling the product reaches. Value = inverse of price-per-trial-dose-day. Community = mean sentiment of external reviews. Säkerhet caps applied after weighting.
This score is our editorial judgment, not a scientific standard. We combine published evidence, dose, price, transparency, and consumer signals into one composite: this is our method, not a peer-reviewed clinical rating. A higher score means a product does better on the factors we weight, not that it is medically proven to work.
The science behind each active ingredient, independent of which brand sells it.
A methyl donor added to NAD+ formulas as a supporting cofactor, not a headline active.
The specific product: dose, price, transparency, and what buyers report.
Säkerhet flags, transparency gaps, dosing concerns, and recurring buyer complaints.
All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Bevisning grades are reviewed when new human RCTs are published. Read how we verify.
Consumer signals gathered from 3 platforms.
Medium confidenceConsumer sentiment compiled from 3 public sources (ConsumerLab, Examine.com, Trustpilot).
positive sentiment
Compiled from a ConsumerLab listing located during manual research; not independently re-verified against the live page at build time.
positive sentiment
Compiled from a Examine.com listing located during manual research; not independently re-verified against the live page at build time.
4.5/5 · positive sentiment
Compiled from a Trustpilot listing located during manual research; not independently re-verified against the live page at build time.
These are consumer sentiment signals. They do not measure whether the product actually works. See our evidence section for that.
Public sources on this same product, unrelated to NO1GEVITY. NIH DSLD is the US government's registered label database (shown verbatim). SuppCo.com is a separate, unaffiliated commercial site with no partnership or data-sharing arrangement with us. NO1GEVITY scores are computed independently of both.
SuppCo is a separate, unaffiliated supplement-tracking site with no partnership, data-sharing agreement, or business relationship with NO1GEVITY. We are not endorsed by them and they do not endorse us. The two facts below are individually verified against the manufacturer or NSF; the outbound link is provided only so readers can independently cross-check on a third-party site if they want to.
We treat external opinion very differently depending on where it comes from. Tier A is our strongest signal. Tier C is background sentiment only. Tier Rejected is what we excluded, listed openly so you can see what we discarded.
These reviews are aggregated from third-party sources, not written by NO1GEVITY. Each entry shows its source, retrieval date, and whether the source has an affiliate or paid relationship. We do not edit reviews to change their meaning. Disclosure policy.
Our strongest external evidence. Long-form independent reviews, physical-product lab work, and third-party certifications.
Names Thorne as category-leading on purity and third-party testing despite the operational Trustpilot score.
Mood indicator only. We never use aggregate stars as evidence of efficacy.
Aggregate score 2.4 / 5. Complaints concentrate on delivery, billing, and customer service — not on product quality or purity.
Additional public mentions we located, kept separate from the deep independent reviews above.
Passed ConsumerLab identity/purity testing in NAD+ precursor category.
Examine lists NR as one of the best-validated NAD+ boosters, with an established safety record.
Thorne brand-level 4.5/5. Cited for practitioner-grade quality.
Longevity brands rarely test their exact finished product. We separate what's tested from what's inferred.
The studies that established the trial dose and evidence grade for each active ingredient in this product. Click through to read the original paper.
Not medical advice. We list the strongest claims made by the brand and check each against traceable evidence.
Rules change often. We record when we last verified each row. See the full regulatory timeline →
We list this openly. If a claim isn't backed by a source we can trace, we'd rather flag it than repeat it.
Community discussion exists and is predominantly positive, highlighting perceived benefits and lower cost compared with Tru Niagen. No single Reddit thread is treated as a representative product review.
The product page is a first-party page with customer-review presentation, but no product rating or count was extracted.
An Amazon listing for this exact product was located. The product URL is not retained because marketplace listings can change.
Best-price licensed Niagen® NR product on the market. NSF Certified for Sport.
This Thorne HealthTech NiaCel 400 scores 7.0, making it a mid-tier product with both strengths and weaknesses. It delivers the full 400mg trial dose of NR with grade B evidence (promising human data, not yet comprehensive). Transparency is a clear strength (score: 9.5), with third-party testing and a public analysintyg.
If you are the manufacturer or brand owner of NiaCel 400 and believe any data on this page is incorrect (wrong dose, wrong ingredient, wrong price, missing certification, outdated status), you can request a correction.
We review every request, verify it against primär sources, and publish any change with a dated note in the version history above. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.
Request a correction →The next highest-scoring produkter in NAD+ booster, same scoring method, same rules.