Order your test
Purchase the test and receive the lab referral needed for your blood draw.
Testing & Tracking
Biological Age Blood Test Rx
Your birthday tells you how long you’ve lived. PhenoAge testing helps reveal how your body is aging beneath, so you can stop guessing, establish a baseline, and track what changes over time.
Starting at
$75
- 9-marker blood panel
- Lab order and Quest testing fees included
- Free BioAge Calculator access
- No membership required
See if your biological age is ahead or behind your calendar age
Measures 9 markers linked to biological aging¹
After your test, use the free calculator to find your BioAge
One-time charge
Ongoing expert support
Completed at your local lab
Guided by our in-house team
Frequently asked questions
What is a biological age test, and how is it different from just knowing my age?
Chronological age is just a count of years. Biological age looks at how your cells, organs, and systems are actually holding up. It factors in genetics, lifestyle, and environment, so it tends to track more closely with how you actually feel and function than your birth certificate does.2
Why purchase the Biological Age Blood Test if the BioAge Calculator is free?
The calculator is free if recent bloodwork includes every marker it needs. Many routine panels leave out at least one required value, commonly C-reactive protein. The $75 test includes the lab order, all nine markers, and Quest testing fees, so you can generate your Phenotypic Age without chasing down missing labs.
How accurate are biological age tests and why do different tests give different answers?
Different biological age tests (epigenetic clocks, different types of organ age tests, PhenoAge) measure different biological inputs and were built and validated differently, so they can legitimately produce different numbers for the same person.3 That’s not evidence biological age tests are nonsense, it’s evidence you should know which specific layer of biology you’re assessing and what risks the clock is trained to predict. This is where scientific expertise and clinical guidance is so important.
PhenoAge, the model behind this test, was developed and validated using data from over 11,000 adults, and has been independently shown to predict all-cause mortality, disease risk, and physical functioning—even in healthy, disease-free people—better than chronological age alone.1 That’s a genuinely strong evidence base. Even so, no biological age test today can pin down exactly how long you’ll live or diagnose a specific condition. Think of the result as a meaningful, well-validated data point to track over time, not a verdict.
Usage instructions
View all FAQs
Order your test and use the included lab referral to schedule your blood draw at a participating lab location. Once your lab results are available, enter all nine values into the free AgelessRx BioAge Calculator to calculate and download your Phenotypic Age report.
Important safety information and common side effects
The information from this test is for informational purposes only and is not intended as a substitute for advice from your physician or other health care professional or any information contained on or in any product label or packaging. You should not use the information on this test for diagnosis or treatment of any health problem or for prescription of any medication or other treatment. You should consult with a healthcare professional if you have or suspect you might have a health problem. You should not stop taking any medication without first consulting your physician.
Note: The above statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Disclaimer
Products require an online evaluation with a licensed medical professional who will determine if a test is appropriate.
One test. A deeper view of how you’re aging.
Measure what matters
- Inflammation: C-reactive protein
- Metabolic health: Glucose
- Kidney function: Creatinine
- Liver and nutritional health: Albumin and alkaline phosphatase
- Immune activity: White blood cell count and lymphocyte percentage
- Blood cell health: Mean corpuscular volume and red cell distribution width
How our biological age blood test works
Visit the lab
Schedule at a nearby Quest lab location and complete one standard blood draw.
Get your results
Receive all 9 biomarker results needed to calculate your Biological Age.
Use our calculator
Find your Biological Age
How are you aging? View and download your report to see your Biological Age, then connect with one of our experts to get the right plan for you.
Order your test
Purchase the test and receive the lab referral needed for your blood draw.
Visit the lab
Schedule at a nearby Quest lab location and complete one standard blood draw.
Get your results
Receive all 9 biomarker results needed to calculate your Biological Age.
Use our calculator
Find your Biological Age
How are you aging? View and download your report to see your Biological Age, then connect with one of our experts to get the right plan for you.
Designed around published aging science
Phenotypic Age was validated and independently confirmed to predict mortality and disease risk across diverse populations better than chronological age alone.1 We make the model easier to use with the complete 9-marker panel, an included lab order, and access to our free Biological Age calculator.
Based on the published, peer-reviewed 9-marker Phenotypic Age model1
Developed and validated using data from 11,432 adults1
Reviewed by our Stanford PhD-led Research Team
Clinically studied
The science behind the Biological Age Blood Test
Instead of handing you 9 disconnected lab numbers, Phenotypic Age brings them together to answer a more useful question: What age does your current blood profile most closely resemble?
The markers reflect several parts of how your body is functioning, including inflammation, metabolism, organ function, immune activity, and blood health. Together, they may reveal differences that your birthday alone cannot show.1
The real value is having a baseline that belongs to you. Repeat the same test after making sustained changes, and you may begin to see whether the work you are putting into your health is moving your biology in the direction you want.
How it works
Choosing how you age starts here
1
100% online
Order your test
Purchase the test online and receive the lab referral needed to measure all nine required markers. No separate provider appointment is required.
2
Convenient testing
Visit your local lab
Schedule your appointment at one of more than 2,000 Quest Diagnostics locations and complete one standard blood draw.
3
Clear next steps
Calculate your Biological Age
Enter your results into the free AgelessRx BioAge Calculator to see your Phenotypic Age and download your report, then connect with one of our experts to explore your options.
Get Started
Disclaimer
The above statements have not been evaluated by the Food and Drug Administration. Benefits outlined on AgelessRx.com are based on 3rd party studies. Actual product packaging may appear differently than shown. This test and its results are provided for informational purposes only. They are not intended to diagnose, treat, cure, or prevent any disease and should not replace advice from a qualified healthcare professional. Do not begin, stop, or change medication or treatment based solely on your results. Discuss unexpected or concerning lab findings with a qualified healthcare professional.
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Frequently asked questions
Biological age is a broad term for estimates of how the body is aging. PhenoAge is a published, peer-reviewed algorithm developed by researchers at Yale and the National Institute on Aging, combining chronological age with nine standard clinical blood markers into a single estimate of biological aging.1
It was built and validated using data from thousands of adults across multiple independent studies, and has been shown to predict mortality, disease onset, and physical functioning more accurately than chronological age alone—including in people with no diagnosed disease.1 Different biological age tests may produce different results because they measure different aspects of aging, which is exactly why knowing which specific model you’re looking at matters.3
No. This test uses standard blood markers to calculate Phenotypic Age. Methylation tests examine chemical patterns associated with DNA and use a different method to estimate biological age. This test offers a lower-cost way to establish a biological age baseline using a standard Quest blood draw.
It tells you how your current blood chemistry compares to typical values at different ages in terms of mortality and disease risk. It’s not a diagnosis of any specific condition, and it works best as a baseline you track over time rather than a single verdict read in isolation.
Pricing varies by test: the TruMe At-Home Methylation Test and the Phenotypic Age Blood Test are on the lower end starting at $75 for a one-time fee, while some more comprehensive epigenetic panels cost more. The Biological Age Calculator is free if you already have blood work to enter.
Yes! If you’ve had recent standard bloodwork done, AgelessRx’s free calculator may be able to estimate your biological age from those results alone, no new sample needed.
Since biological age can shift with lifestyle changes and treatment over time, many people retest every several months to a year to see whether their plan is moving the number in the right direction, rather than testing so frequently that day-to-day noise gets mistaken for a real trend.4
My biological age is
fact checking.
We vet everything on PubMed so you don’t have to. Here’s what the science says.