Discover Your True Biological Age

Gold-standard epigenetic testing developed by Steve Horvath, PhD: the pioneer of biological age measurement

Track your aging progress and optimize your longevity protocols with the most scientifically-validated biological age tests available.

Epigenetic GrimAge Test

GrimAge predicts your biological age based on DNA methylation—changes in your DNA over time. It has outperformed all other epigenetic clocks and strongly correlates with morbidity and mortality.

What’s Included:

At-Home Blood Collection Kit
Advanced Healthy Aging Report
1-on-1 Report Review & Portal Onboarding
Monthly Research Group Meetings

PhenoAge Biological Age Test

Get your biological age score based on 9 clinical biomarkers that strongly correlate with age-related diseases and mortality. Developed by top researchers including Dr. Morgan Levine and Dr. Steve Horvath.

What’s Included:

Lab Blood Test (Quest Labs)
Biological Age Report
Personalized Recommendations
Clinical Biomarker Analysis

Track Your Progress

Optimize your longevity interventions by measuring before and after. See the real impact of your protocols.

GrimAge Before & After

Two GrimAge tests to track your epigenetic age changes over time.

$650 $575

Save $75

Get Bundle

PhenoAge Before & After

Two PhenoAge tests to measure your biological age improvement.

$150 $125

Save $25

Get Bundle

Frequently Asked Questions

What’s the difference between GrimAge and PhenoAge?

GrimAge is an epigenetic clock based on DNA methylation patterns and is considered the most accurate predictor of biological age and mortality risk. PhenoAge uses 9 clinical blood biomarkers and is more affordable, making it great for frequent tracking. For the most comprehensive picture, many people use both.

How long does it take to get results?

GrimAge results take 4-6 weeks from sample collection. PhenoAge results are typically available within 1-2 weeks after your blood test.

Can I track my progress over time?

Absolutely! That’s why we offer before/after bundles. We recommend testing every 6-12 months to track the impact of your longevity interventions. The portal allows you to compare results over time.

Is the blood collection difficult?

The GrimAge test uses a simple at-home Tasso collection device that takes 5-10 minutes. PhenoAge requires a standard blood draw at Quest Labs. Both options also offer a home phlebotomist service for an additional $100.

What if I’m outside the US?

GrimAge tests are available in the US, EU, UK, and Canada. PhenoAge tests are currently available in the US and select UK locations. Check the product pages for specific availability in your region.