Longevity,
graded.
Live longer, age better — inside and out. We read the clinical studies so a label can't read you. Every molecule you take or apply: an A–F grade and its PubMed sources.
Graded on evidence —
not on hype.
A–F
Evidence scale
PubMed
Primary source for evidence
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Hidden sponsors
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How we read the evidence
Every molecule gets a grade from A to F. No supplement is promoted: the letter only tells you how solid the scientific proof is.
Latest analysis
View all →Berberine, the alleged "natural Ozempic": what the studies say
2026-08-18 · 3 min read
Ceramides and the skin barrier: ingredient evidence versus product claims
2026-08-18 · 3 min read
Creatine and aging: what human studies actually show
2026-08-18 · 3 min read
Photoprotection is a longevity intervention (not skincare)
2026-08-18 · 3 min read
Free resource
The Longevity Molecule Report Card
Every molecule we cover, graded A–F on the evidence alone — on one page you can print or save as a PDF. No hype, no sponsors.
Get the report card →The method
Rigor before hype
We start from the clinical question, search PubMed, and grade the evidence with an adapted GRADE schema. No hidden conflicts.
See the full method →Get the Report Card, then the evidence.
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