About NADPrime & Our Review Method
NADPrime exists for one reason: the longevity supplement market is loud, expensive and full of claims that outrun the evidence — and people over 50 deserve a clearer signal than that.
Dr. Eleanor Voss — Health Researcher & Longevity Writer
Eleanor researches and writes about NAD+ metabolism, cellular aging and the evidence behind longevity supplements. Her background is in health research and science communication, and her focus is the gap between what supplement marketing promises and what published human trials actually show.
Why this site is different
Most supplement review sites are built to sell. They lead with the product, bury the caveats, and quietly imply someone personally tested everything. We do the opposite, and we're transparent about how.
Our method — and an important honesty note
Every assessment on NADPrime is research-based. That means our evaluations come from four sources: published human clinical trials, peer-reviewed ingredient research, manufacturer disclosures, and aggregated patterns in verified user feedback.
What we don't do: we don't claim to personally test or use these products. Eleanor is an analyst and researcher, not a product tester. When you read a NADPrime review, you're getting a careful reading of the evidence — not a personal "I took this for 30 days" story. We believe that's both more honest and more useful, because the science doesn't change based on one person's experience.
How we score
Each product is evaluated on five factors:
| Factor | What we look at |
|---|---|
| Clinical evidence | Does the formula (or its key ingredients) have human trial support? Is any product-specific trial independent or manufacturer-funded? |
| Ingredient transparency | Full dosing disclosed, or hidden behind a proprietary blend? |
| Marketing honesty | Do the claims match the evidence, or overreach into "reverse aging" territory? |
| Guarantee | Is the refund window long enough to actually judge a gradual supplement? |
| User feedback patterns | What do documented, verified reports consistently say — including where reality diverges from marketing? |
Our promise on affiliate links
NADPrime earns commissions when readers buy through some of our links — that's how the site is funded. Here's our commitment: this never changes our rankings or assessments. We score on evidence, we name a product's weaknesses even when we'd earn from a sale, and we tell you directly when to skip something or when a non-commissioned alternative fits you better. A review that can't say "don't buy this" isn't a review — it's an ad.
A word on expectations
We write for adults who've stopped falling for miracle claims. The supplements we cover can offer real, mechanism-backed support — raised NAD+, raised IGF-1, modest metabolic benefits — but none of them reverse aging, and we'll never pretend otherwise. Honest expectations are the foundation of a good decision.