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Longevity pillar · Singapore

Epigenetic Biological Age Testing in Singapore

Your DNA letters barely change over your lifetime - but the chemical tags sitting on top of your DNA shift constantly in response to diet, sleep, stress, exercise and environment. Reading those tags tells us your biological age, which can be years younger or older than your chronological age.

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  • SMC-registered doctors
  • MOH-licensed clinic (HCSA)
  • Mandarin Gallery, Orchard Road
  • Weekdays 10am-7pm · Sat-Sun 10am-5pm
  • Personal health concierge

What it measures

Biological age

An estimate of how old your body looks at the molecular level, calculated from DNA methylation patterns at thousands of specific sites.

Age gap

The difference between your biological and chronological age - the headline number patients track over time.

How the test works

Sample

Saliva or blood, collected during a single clinic visit.

Turnaround

Your personal health concierge confirms the reporting timeline for your laboratory when your sample is collected.

Method

DNA methylation profiling at thousands of CpG sites, interpreted through peer-reviewed epigenetic clocks (GrimAge, PhenoAge).

Why this method

We do not rely on a single clock. Multiple validated algorithms are reported together so you and your doctor can see signal vs noise, then track movement on a baseline + repeat reading 6-12 months later.

What you'll learn

  • Whether your biological age is ahead of, behind, or in line with your chronological age.
  • How fast you are currently ageing.
  • Whether the lifestyle changes you are making (training, nutrition, sleep, stress, supplements) are actually moving your biology.
  • Which systems may warrant closer attention.

Why biological age matters for healthspan

Healthspan is the number of years you spend in good functional health, as distinct from lifespan. Epigenetic clocks were built to estimate that biological trajectory: they read chemical methylation marks on DNA and compare the pattern against reference populations of known age and health status.[1]

Second-generation clocks such as PhenoAge and GrimAge were trained not on chronological age but on clinical measures and outcomes, and in published cohort analyses an epigenetic age older than chronological age has been associated with higher risk of age-related disease and mortality.[2], [3]

A third-generation measure, DunedinPACE, reports the pace of ageing rather than a single age figure. It was developed from a cohort followed over decades and expresses how many biological years you accumulate per calendar year, which is the measure most sensitive to change between two readings.[4]

Methylation is responsive rather than fixed. Small randomised and pilot studies of diet, exercise, sleep and stress interventions have reported measurable movement in epigenetic age estimates, though the trials are early, small and not yet proof that changing the marker changes the outcome.[5]

These findings describe associations observed across populations, and epigenetic testing is a research-derived tool rather than a diagnostic. A result is a starting point and a way to track change over time, not a prediction about you as an individual.

Reading your report

Biological age

Your estimated age at the molecular level from each clock reported, shown next to your chronological age so the direction and size of the gap is clear.

Age gap

Biological age minus chronological age. A negative gap means your methylation pattern resembles people younger than you. This is the figure most patients track.

Pace of ageing

Where a pace measure is reported, a figure near 1.0 means roughly one biological year per calendar year. Above 1.0 is faster, below is slower.

Multiple clocks side by side

Different algorithms weight different sites, so they rarely agree exactly. Reporting several together shows whether a finding is signal or the quirk of one model.

System-level signals

Some clocks report component scores that flag which systems are contributing most to the gap, which helps direct the rest of your work-up.

Doctor's interpretation

Your result read against your bloods, body composition and history in the action-plan session. A number without that context is not a plan.

What moves the result

Sleep

Consistent duration and timing. Short and fragmented sleep is repeatedly associated with accelerated epigenetic age in observational cohorts.

Aerobic fitness and strength

Measured cardiorespiratory fitness and lean mass track with slower biological ageing estimates, which is why VO2 max and body composition are read alongside.

Body composition and metabolic health

Visceral fat, glucose regulation and lipid status are among the strongest correlates of second-generation clock output.

Nutrition quality

Dietary patterns rich in vegetables, adequate protein and methyl-donor nutrients feature in the small intervention trials reporting movement.

Alcohol and smoking

Both leave clear methylation signatures. Smoking status is directly weighted in GrimAge.

Chronic stress load

Sustained psychological stress and its hormonal consequences are associated with faster estimated ageing.

Who it's for

  • Anyone making serious lifestyle investments who wants objective feedback.
  • Patients on hormone, metabolic, or longevity therapies tracking response.
  • People in their 40s, 50s and 60s building a measurable healthspan plan.
  • Athletes and high performers managing training load and recovery.

When to repeat: Every 6-12 months while you are actively making changes. A single reading is a snapshot; the value comes from movement between readings.

How it fits the three pillars

No single test defines biological age. The epigenome sits alongside the other two pillars of longevity data - each reveals something the others cannot. Combine them for the most complete picture current medicine can offer.

Pillar

Microbiome

The microbial ecosystem in your gut shapes digestion, immunity, mood, inflammation and metabolism.

Learn more

Included in these tiers

Every tier includes a pre-test consultation, sample collection at our Orchard Road clinic, laboratory analysis, clinician-led interpretation, a written report and an action-plan session.

The Janus (The Baseline)

All-inclusive tier

The Apollo (The Functional)

All-inclusive tier

The Helios (The Performance)

All-inclusive tier

The Orion (The Complete)

All-inclusive tier

See the full longevity screening package list.

FAQ

Epigenome - frequently asked questions

Clear answers, written by our clinical team. Tap any question for its direct permalink, or reach out to your Personal Concierge for anything else.

  1. How accurate are epigenetic clocks?

    The clocks we use are peer-reviewed and validated against thousands of samples. Any single reading carries some measurement variation - which is why we recommend a baseline plus repeat reading 6-12 months later to measure real change, not noise.

  2. What can move my biological age?

    Sleep quality, training, nutrition, body composition, stress load, alcohol, smoking, metabolic health, hormone status and certain medications have all shown measurable effects in published studies. Your action-plan session translates your result into the specific levers most likely to matter for you.

  3. Is this the same as a 'wellness age' from a fitness app?

    No. Wearable and questionnaire-based age scores are derived from indirect signals. Epigenetic age is measured directly from chemical modifications on your DNA - a fundamentally different layer of biology.

  4. How often should I repeat the test?

    Every 6-12 months if you are actively making lifestyle changes. Annually if you are in a stable maintenance phase.

  5. Does this test diagnose disease?

    No. It is a longevity and healthspan tracking test, not a diagnostic for any specific condition. Findings can prompt your doctor to investigate further when warranted.

  6. What is the difference between GrimAge, PhenoAge and pace of ageing?

    PhenoAge and GrimAge were trained on clinical measures and outcomes rather than on chronological age, so they estimate biological age in the context of health. Pace-of-ageing measures such as DunedinPACE report how fast you are ageing per calendar year rather than a single age figure, which makes them the most sensitive to change between two readings.

  7. How is biological age different from my chronological age?

    Chronological age counts birthdays. Biological age estimates how old your body looks at the molecular level based on methylation patterns. Two people born on the same day can sit years apart, and it is the gap and its direction over time that your doctor works with.

  8. How quickly can biological age change?

    Published pilot interventions ran for eight to twelve weeks before reporting measurable movement, and cohort work suggests meaningful shifts are best judged over six to twelve months. Anything measured week to week is noise.

  9. Do I need to fast or prepare for the sample?

    No fasting is required for a saliva or blood methylation sample. If you are recovering from an infection or a period of acute stress, your concierge may suggest deferring collection so the baseline is representative.

  10. Are epigenetic clocks validated in Asian populations?

    The major clocks were developed largely on European-ancestry cohorts, with growing validation work elsewhere. We report the figure as a trend to track rather than an exact age, which is the appropriate way to use it in any population.

Still have a question?

Your Personal Concierge replies within one business day - confidentially.

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What this test does not tell you

  • It is not a diagnostic test. It does not detect cancer, cardiovascular disease or any specific condition.
  • Different clocks give different numbers. The gap between algorithms is expected and is why several are reported together.
  • A single reading carries measurement variation. Real change is judged from a baseline and a repeat measured the same way.
  • The evidence that lowering an epigenetic age lowers actual risk is not yet established. The marker is a tracker, not a proven target.
  • Reference populations used to train the clocks are not always Asian, so the age gap should be read as a trend rather than an exact figure.
  • Recent acute illness, infection or major stress can shift a reading. Timing matters, and your concierge will advise on it.

References

  1. [1] Horvath S, Raj K. DNA methylation-based biomarkers and the epigenetic clock theory of ageing. Nature Reviews Genetics. 2018;19(6):371-384.
  2. [2] Levine ME, Lu AT, Quach A, et al. An epigenetic biomarker of aging for lifespan and healthspan. Aging. 2018;10(4):573-591.
  3. [3] Lu AT, Quach A, Wilson JG, et al. DNA methylation GrimAge strongly predicts lifespan and healthspan. Aging. 2019;11(2):303-327.
  4. [4] Belsky DW, Caspi A, Corcoran DL, et al. DunedinPACE, a DNA methylation biomarker of the pace of aging. eLife. 2022;11:e73420.
  5. [5] Fitzgerald KN, Hodges R, Hanes D, et al. Potential reversal of epigenetic age using a diet and lifestyle intervention: a pilot randomized clinical trial. Aging. 2021;13(7):9419-9432.

Ready to add epigenome to your longevity baseline?

Your personal health concierge coordinates the consultation, sampling, interpretation and action-plan session end-to-end.

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Medically reviewed by Dr. Anthony Stanislaus, MBBS, PBM, Cert. Men's Health

Last reviewed 12 August 2026 · Next review 12 February 2027