The Independent Authority
on Biological Age.
Biological vitality • Time within • Understand • Compare
Top-Rated Biological Clocks Comparison
| Test Name | Accuracy Score | Key Biomarkers | Cost | Review |
|---|---|---|---|---|
TruAge Complete TruDiagnostic | 93% | TruAge, Complete, GrimAge, Clock, Biomarkers | $500 | Read Review |
GrimAge Clock Foundation | 93% | GrimAge, CnqmAge | $200 | Read Review |
DunedinPACE | 94% | TruAge, GrimAge, DunedinPACE | $155 | Read Review |

In the Lab
Intervention of the Month
Rapamycin & mTOR Inhibition: A deep dive into the most promising longevity intervention.
Read the ReportThe Science of Aging

What Is Biological Age?
Your body's age isn't always what the calendar says. Learn how molecular markers reveal a different story — and what that means for your health.

The Hallmarks of Aging
Fourteen biological processes drive how we age — from DNA damage to chronic inflammation. Discover the framework behind every aging test.

Understanding Cellular Senescence
Understanding Cellular Senescence is the understanding cellular senescence.