The Gold Standard in Biological Age Testing
SystemAge™ explicitly measures the patterns of aging in your DNA through changes in methylation—subtle signals that reflect how your biology evolves over time. By quantifying deviation from a healthy baseline, it delivers a more direct, data-driven measure of your biological age.
Aging Is Not Linear:Introducing Aging Entropy Curve™
Aging Doesn’t Accelerate Gradually - It Surges.
Biological aging accelerates in non-linear waves, with critical acceleration points where molecular disregulation surges across multiple pathways.
Using BioNoise™ measurement, Dr. Conboy’s lab identified this pattern as the Aging Entropy Curve™, a model describing how epigenetic regulatory control degrades in accelerating phases rather than gradually.
Your Position On The Curve Matters
The SystemAge™ Test maps each of your 21 systems against the Aging Entropy Curve™, showing where you are today and how close each system is to an acceleration point (the inflection point where decline compounds).
This context provides earlier visibility into where aging-related biological change is likely to accelerate, enabling more proactive, system-specific intervention.
BioNoise™: A Novel Way to Measure Aging
The Signal Everyone Else Is Missing.
Conventional epigenetic clocks rely on methylation levels and statistical models to predict age. But levels alone capture only the average signal, not how that signal is regulated or how it changes over time.
Aging is reflected not just in the level itself, but in increasing variability in methylation patterns, a sign of declining regulatory control. A healthy 30-year-old and a 70-year-old in decline can show the same methylation level at a CpG site, yet one is stable while the other becomes increasingly disordered. The level is the same. The underlying biology is not.
Conventional Clocks Estimate.
The SystemAge™ Test Measures.
In a healthy body, the epigenetic machinery holds critical gene-regulatory sites within a narrow band: tight, stable, accurate. As biological aging progresses, that control breaks down.
Methylation doesn't shift in one direction. It scatters. Variability increases. Regulatory precision declines. The body loses its grip on itself.
This is BioNoise™: the measurable loss of epigenetic regulatory control, pioneered by Generation Lab CSO Dr. Irina Conboy and her laboratory with over 20 years of aging research.
Where machine learning models assign arbitrary statistical weights to individual CpG sites, the SystemAge™ Test is built on curated biology, measuring the total variability across all 460 expert-selected biomarkers. A direct measurement of how well your biology is holding together.
Not All Biomarkers Are Created Equal
460 Biomarkers. Each One Earned Its Place.
The SystemAge™ Test analyzes 460 epigenetic biomarkers mapped across 21 body systems, selected not just for scale, but for biological relevance. Each biomarker was chosen to reflect meaningful changes in how aging unfolds across systems.
Most Tests Optimize for Prediction, Not Biology
Conventional epigenetic clocks rely on Elastic Net regression, selecting CpG sites based on how well they predict chronological age in a dataset. This approach prioritizes statistical fit, not biological significance.
A 2025 study in GeroScience by Dr. Irina Conboy's lab demonstrated that Elastic Net regression systematically excludes biologically relevant CpG sites, including those critical to distinguishing healthy aging from accelerated decline. Because this method can remove overly correlated variables, meaningful signals can be downplayed, hiding the full picture of aging biology. Generation Lab's approach embraces that connection, because the goal is measurement, not model construction.
References
The Algorithm That Understands Biological Aging
The SystemAge™ Test starts with biology and validates with statistics. Each of the 460 biomarkers met three rigorous selection criteria:
Every biomarker earned its place through both biological relevance and statistical rigor, not convenience.
The SystemAge™ Test starts with biology and validates with statistics. Each of the 460 biomarkers met three rigorous selection criteria:
Less than 0.1% difference in mean methylation levels between young (25–28 years) and old (67+ years) individuals, ensuring sensitivity to variability, not age-correlated drift;
Consistency across healthy control datasets from multiple independent cohorts; and
A demonstrated increase in summed variability from young to older populations.
Every biomarker earned its place through both biological relevance and statistical rigor, not convenience.
View our biomarkers →460 Biomarkers. 21 Systems. See What’s Driving Your Aging.460 Biomarkers. 21 Systems.
See What’s Driving Your Aging.
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Your Aging Isn’t Uniform.
Your Test Shouldn’t Treat It That Way.
The SystemAge™ Test analyzes your overall biological age and breaks it down across 21 body systems, applying BioNoise™ measurement to quantify epigenetic regulatory control within each system.
Each system follows its own trajectory, with distinct phases of stability and acceleration. One system may be approaching accelerated decline while others remain stable. These are signals that are otherwise invisible.
From Insight to Action.
Precision Enables Intervention.
By identifying which systems are contributing most to your biological age, SystemAge™ allows you to focus where it matters most. Because epigenetic changes are mutable, this resolution also enables tracking over time. Measure how each system responds to intervention and adjust accordingly.
How Do You Know It’s Working?
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Measure Real Change, Not Random Variation.
Trusted by 300+ clinics worldwide, the SystemAge™ test is designed for longitudinal tracking, using BioNoise™ measurement to distinguish true epigenetic shifts from background variability.
The underlying assay demonstrates strong technical reproducibility: the same sample produces consistent results across repeated runs, offering confidence that measured changes reflect real biology, not instrument variation.
Because results are tracked independently across 21 systems, you can see exactly which parts of your biology are responding and which are not.
Most aging clocks prioritize fit. We prioritize accuracy.
Triplicate testing of 460 CpG biomarkers from a single user sample shows near-perfect agreement across runs.
Replicate 1 vs Replicate 2
Replicate 1 vs Replicate 3
Replicate 2 vs Replicate 3
From Measurement to Personalized Action
Your Aging Is Unique.
Your Plan Should Be Too.Your Aging Is Unique. Your Plan Should Be Too.
Most biological age tests end with a number. The SystemAge™ Test ends with a plan.
By analyzing 21 body systems independently, the test identifies which systems are driving your aging and where acceleration is occurring. This system-level precision makes targeted intervention possible, directing action where it can have the greatest impact.
The result is a plan built around your biology, not a generic playbook. For those working with a longevity professional, it provides a foundation for more precise, system-specific protocols.
Retest over time to measure how each system responds, validate what is working, and refine what is not.
Backed by World-Leading
Scientists and Clinicians
Our science is backed by world-renowned
scientists with cutting-edge research.
Dr. Irina Conboy
CSO & Co-founder
Leading expert in aging research and regenerative biology. Dr. Conboy's groundbreaking work in cellular rejuvenation and aging mechanisms forms the foundation of our technology.
Dr. Conboy on Google Scholar →Experience the science
Discover your true biological age with our revolutionary testing technology.