150+ biomarkers, read together with your wearable into a single Zaro Score. Answers in days, with a plan you will actually follow.
No waiting rooms. No referrals. No insurance hoops. Order online, choose how you want your blood drawn, and get results that actually make sense.
See the full process
Pick Surface, Signal, or Source based on how deep you want to go. FSA/HSA accepted.
Visit a compatible Quest location near you. Labcorp and BioReference are coming soon. New York and New Jersey are coming soon, and Rhode Island is not currently supported.
Results are ready in 5–7 business days, delivered to the Zaro app with plain-language explanations.
Your results are synthesized into a 0–100 Zaro Score across 7 health domains, updated every time you test.
Your body has been sending signals for years. A standard checkup reads a handful of them, once a year. Zaro reads more than 150, alongside what your wearable sees every day, so you can act while change is still easy.
Zaro brings together your bloodwork, wearable signals, and lifestyle into one living number, then shows how that number compares to your peers and changes over time.
Sample output · your score reflects your actual data
Biological Ages
Biological Age
5 YRS YOUNGER
PhenoAge Model
Heart Age
3 YRS OLDER
AHA PREVENT
Exclusive to Signal and Source panels
Wearable signals
Synced from Apple Health
300+ compatible devices supported
How You Compare
Better than 72% of people aged 35–40
Based on anonymized aggregate data within the same age group
Score Over Time
No generic advice. Zaro turns each out-of-range marker into a small, specific change, then checks in until it sticks.
Food
Protein first, fewer refined carbs
Because: Fasting insulin trending up
Movement
Zone 2 cardio, three times a week
Because: VO₂ max 52
Sleep
Seven to nine hours, same time nightly
Because: HRV 58 ms
Supplements
Magnesium glycinate, 400 mg
Because: Low RBC magnesium
Most platforms hand you a report and hope you read it. Zaro’s engine pair turns your biomarker data into a daily action plan that follows up with you until behaviour actually changes.
Every recommendation is tied directly to a specific marker in your blood. No generic advice, no guesswork. Only what your biology actually needs right now.
Updated after every panel run, prioritized by impact
Zaro’s adaptive notification engine does not just send reminders. It observes your responses and notifies you differently based on your behaviour, asking targeted follow-up questions until the actual blocker is resolved.
Good morning. Time for your Omega-3. Did you take it with breakfast?
Adaptive follow-up triggered by "Not yet"
Adapts based on your response, every single time
Test once. Improve continuously.
“The gap between knowing and doing is where health fails. Zaro adapts to user routine and check-in based on user behaviour.”
Retest twice a year
One record of you, getting clearer every time you test.
Each panel updates your Zaro Score across seven health domains, so you can see what changed, why, and what to do next.
Explore the panelsNo one in the market has packaged blood testing like this. Our cascade model moves from what has gone wrong, to what is developing, to the root causes beneath it all.
Has something already gone wrong?
The foundation · every panel builds on this
A foundational snapshot of your health today. Surface catches what has already crossed clinical thresholds — the baseline every adult should have at minimum once a year.
Covers
Heart · Metabolic · Blood · Kidneys · Liver · Electrolytes · Thyroid · Nutrients
Is something developing?
Includes everything in
Everything in Surface, plus the early-warning markers that catch problems years before they become diagnoses. Signal is the panel cardiologists, endocrinologists and longevity doctors actually order.
Covers
Heart · Metabolic · Blood · Kidneys · Liver · Electrolytes · Thyroid · Nutrients · + Hormones · + Stress
What root causes?
Includes everything in
Everything in Signal, plus the upstream markers that explain why your body performs the way it does. Source maps autoimmune thyroid activity, coagulation risk, inflammatory load and omega-3 status — and unlocks your Biological Age and Heart Age scores.
Covers
Heart · Metabolic · Blood · Kidneys · Liver · Electrolytes · Thyroid · Nutrients · Hormones · Stress · + Immune · + Brain
Dr. Rena Malik is a board-certified urologist and pelvic surgeon with 2.9M+ YouTube subscribers. Her new book, The Hard Truth, is a science-backed guide to testosterone, heart health and longevity. See the Zaro panel she recommends for the numbers behind it.
Paid partnership with Dr. Rena Malik, MD.
Zaro connects with 300+ devices, syncing your sleep, HRV, activity, and continuous glucose data alongside your lab results.
FSA / HSA
You have been setting aside pre-tax money in your FSA or HSA for years. Most people wait until something goes wrong to spend it. Zaro lets you use it differently: a small investment in comprehensive testing today catches the slight imbalances in your biology before they grow into the costly conditions that drain your savings.
Every Zaro panel is currently processed at CLIA-certified Quest Diagnostics facilities — the same labs behind your physician-ordered tests. Labcorp and BioReference are coming soon.
Begin with one draw
Choose a panel, schedule your blood draw, and get answers that actually explain what is happening inside your body.
