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Biological age

Test your biological age

Your calendar age tells you how long you have lived. Your biological age tells you how well. The biological age add-on (€15) on the Baseline calculates your biological age with PhenoAge, a scientifically validated formula that turns nine biomarkers and your chronological age into a single score.

Calculate your biological age
Price

€15

A small add-on to the Baseline blood test. No separate test and no doctor's referral — your biological age is simply included.

01 Concept

What is biological age?

Your calendar age is a fixed number. Your biological age is not. It is an estimate of how old your body is physiologically, based on measurable markers in your blood. Two people aged 40 can have biological ages of 32 and 48, depending on what their numbers say.

Not a score to judge yourself against, but a way to see what your lifestyle is actually doing. A change in sleep, nutrition, training or stress shows up in markers tied, directly or indirectly, to ageing.

02 Calculation

How exactly is your biological age calculated?

Optimize uses PhenoAge, a method developed by Morgan Levine et al. (UCLA, 2018) and validated on ~35,000 participants from the NHANES III population study. The calculation runs in two steps.

03 Progress

Build your trend

A single measurement gives you a starting point. The value is in repetition: re-testing every 6 to 12 months shows whether the changes you make (less ultra-processed food, more strength or endurance training, better sleep) actually lower your biological age.

That way biological age stops being a one-off score and becomes a direction you can verify.

Ready to calculate your biological age? Add the biological age add-on (€15) to your Baseline blood test in the Optimize app.

Calculate your biological age

The PhenoAge markers behind your biological age

The nine biomarkers PhenoAge uses, grouped by category. Click a marker to learn why it was chosen.

Immune system
3 biomarkers
Oxygen transport
2 biomarkers
Organs
3 biomarkers
Nutrients & metabolism
1 biomarkers

Clarity on how your body is ageing

Calculate your biological age via PhenoAge
€15 add-on to the Baseline blood test
See whether your age moves with your lifestyle
ALTAlbuminApolipoprotein BASTAST / ALT ratioBilirubinC-reactive proteinCalciumCreatinineeGFRFerritinFolateGamma-glutamyltransferaseGlucoseHDL cholesterolHematocritHemoglobinHemoglobin A1cHomocysteineLDL / HDL ratioLDL cholesterolLymphocytesMagnesiumMCHMCHCMCVMonocytesNeutrophilsRDWTotal cholesterolTotal cholesterol / HDL ratioTransferrinTransferrin saturationTriglyceridesTriglycerides / HDL ratioTSHVitamin B12Vitamin DFree T4ALTAlbuminApolipoprotein BASTAST / ALT ratioBilirubinC-reactive proteinCalciumCreatinineeGFRFerritinFolateGamma-glutamyltransferaseGlucoseHDL cholesterolHematocritHemoglobinHemoglobin A1cHomocysteineLDL / HDL ratioLDL cholesterolLymphocytesMagnesiumMCHMCHCMCVMonocytesNeutrophilsRDWTotal cholesterolTotal cholesterol / HDL ratioTransferrinTransferrin saturationTriglyceridesTriglycerides / HDL ratioTSHVitamin B12Vitamin DFree T4ALTAlbuminApolipoprotein BASTAST / ALT ratioBilirubinC-reactive proteinCalciumCreatinineeGFRFerritinFolateGamma-glutamyltransferaseGlucoseHDL cholesterolHematocritHemoglobinHemoglobin A1cHomocysteineLDL / HDL ratioLDL cholesterolLymphocytesMagnesiumMCHMCHCMCVMonocytesNeutrophilsRDWTotal cholesterolTotal cholesterol / HDL ratioTransferrinTransferrin saturationTriglyceridesTriglycerides / HDL ratioTSHVitamin B12Vitamin DFree T4
Free T4Vitamin DVitamin B12TSHTriglycerides / HDL ratioTriglyceridesTransferrin saturationTransferrinTotal cholesterol / HDL ratioTotal cholesterolRDWNeutrophilsMonocytesMCVMCHCMCHMagnesiumLymphocytesLDL cholesterolLDL / HDL ratioHomocysteineHemoglobin A1cHemoglobinHematocritHDL cholesterolGlucoseGamma-glutamyltransferaseFolateFerritineGFRCreatinineCalciumC-reactive proteinBilirubinAST / ALT ratioASTApolipoprotein BAlbuminALTFree T4Vitamin DVitamin B12TSHTriglycerides / HDL ratioTriglyceridesTransferrin saturationTransferrinTotal cholesterol / HDL ratioTotal cholesterolRDWNeutrophilsMonocytesMCVMCHCMCHMagnesiumLymphocytesLDL cholesterolLDL / HDL ratioHomocysteineHemoglobin A1cHemoglobinHematocritHDL cholesterolGlucoseGamma-glutamyltransferaseFolateFerritineGFRCreatinineCalciumC-reactive proteinBilirubinAST / ALT ratioASTApolipoprotein BAlbuminALTFree T4Vitamin DVitamin B12TSHTriglycerides / HDL ratioTriglyceridesTransferrin saturationTransferrinTotal cholesterol / HDL ratioTotal cholesterolRDWNeutrophilsMonocytesMCVMCHCMCHMagnesiumLymphocytesLDL cholesterolLDL / HDL ratioHomocysteineHemoglobin A1cHemoglobinHematocritHDL cholesterolGlucoseGamma-glutamyltransferaseFolateFerritineGFRCreatinineCalciumC-reactive proteinBilirubinAST / ALT ratioASTApolipoprotein BAlbuminALT

How to calculate your biological age

01 Download
Download the app
Create a free account in the Optimize app.
02 Pick
Add the biological age add-on
Select the Baseline blood test and add the biological-age add-on (€15). That unlocks your PhenoAge score in the app.
03 Draw
Book a blood draw
Book an appointment at one of the 238+ draw locations near you.
04 Receive
Receive your biological age
Your PhenoAge score appears in the app, alongside the individual markers it is based on.
05 Track
Track change over time
Re-test after 6 to 12 months to see whether your biological age moves with the changes you make.
FAQ

Frequently asked questions

The key things to know about measuring biological age with Optimize.

What is biological age?

Biological age is an estimate of how old your body is physiologically, based on measurable biomarkers in your blood. It can differ from your calendar age, higher or lower, depending on lifestyle, genetics and health.

How is my biological age calculated?
What does the biological age test cost?
Can I lower my biological age?
Do I need a referral from my doctor?

Calculate your biological age. €15 on the Baseline.

See what your body is saying and whether your lifestyle is lowering your biological age.

References

  1. [1]Levine ME, Lu AT, Quach A, et al. An epigenetic biomarker of aging for lifespan and healthspan. Aging Cell. 2018;17(4):e12816. https://doi.org/10.1111/acel.12816
  2. [2]Levine ME. Modeling the rate of senescence: can estimated biological age predict mortality more accurately than chronological age? J Gerontol A Biol Sci Med Sci. 2013;68(6):667-674. https://doi.org/10.1093/gerona/gls233
  3. [3]National Center for Health Statistics. National Health and Nutrition Examination Survey III (NHANES III), 1988-1994. Centers for Disease Control and Prevention. https://www.cdc.gov/nchs/nhanes/nhanes3/nhanes3.htm