Magellan Longevity is an evidence-first longevity storefront: a catalogue of 130 supplements, diagnostics, wearables and recovery devices in which every item carries an evidence grade and links to the primary human research behind it. It is run by Gabriel Radu, DO, a physiatrist, whose state medical licence number and National Provider Identifier are published on this site so that you can check them against two independent government registries before believing anything else here.
The premise is simple and slightly hostile to the category: most longevity marketing is a mechanism story with a bottle attached. A mechanism is not evidence. So every page here starts from the human literature, states what the trials actually measured, and prints the misses — the null results, the missed primary endpoints, the industry funding, the safety signals — above the buy button rather than below it.
Physiatrist, founder and medical reviewer. Credentials, the verification links, and everything published under his byline.
The six grades, what counts as evidence, the exact order a grade is decided in, a worked example at every level, and the downgrade triggers.
The firewall between commissions and grades, and every single way this site makes money — with dates.
What counts as a correction, how each class is handled, and how to report one.
Every grade change and disclosure change, dated, with the source for each.
Six grades. Strong evidence means consistent randomized trials or large convergent cohorts show a real benefit for a specific measurable outcome — 11 products qualify. Moderate means several human studies agree with real limits — 74 products. Emerging means small, short or unreplicated human data — 20. Preliminary means mostly mechanism and animal work — 4. Measurement tool is for tests and sensors, graded on measurement accuracy rather than treatment effect — 20. And Tested — did not work is for things with adequate evidence pointing at nothing: 1 product currently sits there, and it stays in the catalogue. The full rubric →
Or open the interactive catalogue: browse Nutraceuticals & Cellular Energizers in the Magellan store →