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Independent Guide

Navigating the science of biological age.

Start with the science, not the hype. Understand what each test type measures, compare real products, and find the best fit for your goals.

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Get a personalized recommendation based on your goals, budget, and scientific preferences.

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Compare Real Tests

Browse our independent database of biological age tests by clock type, accuracy, and price.

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Understand the Science

Learn what each biological clock family actually measures before buying anything.

Explore clock types
Top-rated biological age tests with accuracy scores and pricing
Test NameAccuracy ScoreKey BiomarkersCostReview
TruAge Complete
TruDiagnostic
93%TruAge, Complete, GrimAge, Clock, Biomarkers$500Review
GrimAge
Clock Foundation
93%GrimAge, CnqmAge$200Review
DunedinPACE
94%TruAge, GrimAge, DunedinPACE$155Review
Person exercising — representing the relationship between physical activity and biological age
Best Evidence
Interventions

Exercise & Biological Age

The most robustly validated longevity intervention available. We examine the peer-reviewed evidence on how aerobic training, resistance exercise, and VO2 max affect epigenetic clocks and biological age trajectories.

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Independent Science.

Not affiliated with any test manufacturers.

Transparent Reviews.

Data-driven analysis of longevity solutions.

Evidence-Based Approach.

Curated by leading researchers and clinicians.