Your biology has the answers.
Your biology
has the answers.
At-home blood testing across 38 key markers. One complete picture. Starting from £79.
At-home blood testing
across 38 key markers.
One complete picture.
Starting from £79.
Rated “Excellent” based on 11,288 reviews
HOW IT WORKS
From testing to action
Painless at-home testing
Under 30 minutes — no needles, no clinics. One small device on your arm, and your sample reaches our lab the next day.
Vitamin D
Free Testosterone
Results in 72 hours
Delivered straight into your personal dashboard. Every biomarker explained in plain language — what it means, why it matters, what to do next.
Magnesium Bisglycinate
200mg daily before bed
Your Magnesium is suboptimal and your Oura data shows inconsistent deep sleep. Bisglycinate supports both recovery and sleep quality.
Tailored insights
Receive personalised recommendations that are scored against your unique biology. Know exactly what will move the needle for your wellbeing, not someone else’s.
1:1 expert advice
Unrushed time with our expert nutritionists to go through your results, answer your questions, and build a tailored wellbeing plan together. Complimentary for full members, discounted for Core customers.
What we test for
Every aspect of your wellbeing, covered
HEALF ZONE TESTING
Choose your test
One-off or ongoing — every option includes access to our in-house practitioners.
One-off test
NewLite
23 biomarkers. A focused starting point — covering liver, cholesterol, iron and key vitamins & minerals.
One-time · pre-order
At-home blood test using the Tasso device
Discounted 1:1 nutritionist consultations
All-in-one health dashboard with personalised recommendations
23-biomarker comprehensive panel
Results within 72 hours
Wearable integration for deeper insights
One-off test
Most PopularCore
38 biomarkers. The full picture, whenever you need it — no commitment.
One-time · no subscription
At-home blood test using the Tasso device
Discounted 1:1 nutritionist consultations
All-in-one health dashboard with personalised recommendations
38-biomarker comprehensive panel
Results within 72 hours
Wearable integration for deeper insights
Annual membership
Membership
Two Core tests a year, consultations after each, plus full membership perks.
12 month contract · 2 tests included
2 × Core tests per year
Complimentary 1:1 consultation after each test
All-in-one health dashboard with personalised recommendations
Next-day delivery on all orders
Exclusive event access
Wearable integration for deeper insights
Select your plan
SELECT GENDER
SELECT PLAN
The Healf Zone membership is limited to one per Healf account.
Select your test type
SELECT GENDER
Who is this kit for?
Healf Zone Lite
SELECT GENDER
Who is this kit for?
Launching 24/06/2026
OUR EXPERTS
Developed alongside leading minds
“Most health platforms give you numbers. Healf Zone gives you meaning — connecting the dots between your data, your habits, and your potential.”
Dr. Gareth Shepherd
Board Member, NHS Integrated Care
Dr. Swart brings her renowned expertise in neuroscience and mental wellbeing to the forefront of health optimisation. A former MIT lecturer and author of the bestselling book, The Source, she combines her scientific knowledge with practical tools to help people enhance their brain health and performance.
Dr. Tara Swart
MD, PhD Neuroscientist
With his expertise in AI-driven health optimisation, Dr. Shepherd helps shape the cutting-edge technology that informs your wellbeing solutions. Co-founder of G Squared Capital, his work has been recognised by the World Economic Forum, as well as the UN.
Dr. Gareth Shepherd
PhD AI Engineer
Dr. Naidoo’s groundbreaking research in Nutritional Psychiatry influences how we connect nutrition to mental and physical wellbeing. Harvard-trained and an award-winning specialist, she founded the USA’s first clinical service in this field.
Dr. Uma Naidoo
MD Nutritional Psychiatrist
Dr. Bischof’s expertise in preventative medicine informs the advanced health strategies you receive. A Columbia and Harvard-trained professor with over 40 peer-reviewed papers, she specialises in biogerontology and the application of AI in medicine.
Dr. Evelyne Bischof
MD, PhD, MPH Longevity Physician
Dr. Steele holds a PhD in Physics from Oxford and is known for his work at the Francis Crick Institute, applying AI to decode DNA and predict heart attacks using NHS medical records. He is also the author of Ageless: The New Science of Getting Older Without Getting Old.
Dr. Andrew Steele
PhD Scientist & Longevity Specialist
Dr. Swart brings her renowned expertise in neuroscience and mental wellbeing to the forefront of health optimisation. A former MIT lecturer and author of the bestselling book, The Source, she combines her scientific knowledge with practical tools to help people enhance their brain health and performance.
Dr. Tara Swart
MD, PhD Neuroscientist
With his expertise in AI-driven health optimisation, Dr. Shepherd helps shape the cutting-edge technology that informs your wellbeing solutions. Co-founder of G Squared Capital, his work has been recognised by the World Economic Forum, as well as the UN.
Dr. Gareth Shepherd
PhD AI Engineer
Dr. Naidoo’s groundbreaking research in Nutritional Psychiatry influences how we connect nutrition to mental and physical wellbeing. Harvard-trained and an award-winning specialist, she founded the USA’s first clinical service in this field.
Dr. Uma Naidoo
MD Nutritional Psychiatrist
Dr. Bischof’s expertise in preventative medicine informs the advanced health strategies you receive. A Columbia and Harvard-trained professor with over 40 peer-reviewed papers, she specialises in biogerontology and the application of AI in medicine.
Dr. Evelyne Bischof
MD, PhD, MPH Longevity Physician
Dr. Steele holds a PhD in Physics from Oxford and is known for his work at the Francis Crick Institute, applying AI to decode DNA and predict heart attacks using NHS medical records. He is also the author of Ageless: The New Science of Getting Older Without Getting Old.
Dr. Andrew Steele
PhD Scientist & Longevity Specialist
BUILT BY RESEARCHERS FROM
OUR COMMUNITY
Hear directly from Zoners
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REAL IMPACT
Life-changing insights
As a doctor, I frequently steer my patients, family, and friends toward your website. I particularly admire this new approach to testing for deficiencies and then providing targeted supplements; it’s a fantastic model.
Omar Sheikh
Member since July 2025
99.3%
of Healf Zone members had at least one out-of-range biomarker
Healf Zone has managed something that the very best doctors in London have not been able to do for me, reducing my cholesterol after many years of high cholesterol issues. I’m really pleased and quite a few of my friends have now joined Healf Zone.
Shadi Dent
Member since May 2025
6+ hours
Members sleeping 6+ hours had 21.6% higher testosterone and 37.1% higher progesterone than short sleepers.
I found this very useful, eye-opening, potentially even life-enhancing. You gave me answers to life-long questions (for example, I received an explanation for my SIBO that I’ve looked for since I was young!) and your advice gives me the opportunity to genuinely enhance my health / mental wellbeing.
Paul Newman
Member since August 2025
38.9%
Members who had taken antibiotics in the last year showed 38.9% higher CRP (inflammation) than those who had not.
I just had to share how amazing the test experience was. From the beautifully curated box to the intuitive instructions, it felt entirely different from the usual finger-prick tests that leave your fingers bruised and struggling for a sample.
Lauren Sherring
Member since September 2025
15.2%
Daily exercisers had 15.2% lower ApoB and 12.2% lower LDL cholesterol than those training less than twice per week.
It’s a great tool and I really think the Healf Zone concept is such a valuable resource for addressing and improving personal health from the inside, using supplements that are actually what you need directly from your results.
Emily Scott
Member since June 2025
6.3%
Daily coffee drinkers had 6.3% lower Copper and 4.0% lower Zinc levels, indicating hindered mineral uptake.
HOW WE COMPARE
A blood test like no other
Standard
Blood volume required
< 1 mL blood
> 10 mL blood
Testing speed
15 minutes, at home
1+ hour, clinic visit
Biomarkers tested
Quality > quantity
Curated by our experts to cut through the noise
Quantity > quality
Outcomes
Actionable recommendations, tailored to you
Overwhelming data, little to no guidance
Support
1:1 consultations with our in-house practitioners
Summary report, left to figure it out alone
FAQs
Is your question not answered here?
Healf Zone eliminates the guesswork in wellbeing by identifying the right products for your unique biology. It delivers science-backed, personalised recommendations designed to optimise your biomarkers, with supporting clinical studies accessible in your dashboard. Your dashboard also tracks your lifetime biomarker changes and curates a tailored daily supplement routine to keep you at your best. Built to evolve with you, Healf Zone continuously refines its insights based on your progress and the latest science — so you always know exactly what your body needs.
If you still have a menstrual cycle, we recommend taking the test on day 2–3 of your period. At this point, your hormones are at their most balanced, giving the clearest baseline picture. Even if your cycle is irregular (e.g. PCOS), day 2–3 is still the best time to test. If you no longer have a cycle (e.g. post-menopause), you can take the test at any time.
Healf Zone is currently available in the UK only and is not suitable for individuals who are pregnant or under the age of 18.
Your Healf Zone membership is an annual plan that includes two at-home blood tests — one every 6 months. Your first kit is shipped as soon as you join, and your second kit is delivered automatically 6 months later, so there’s no need to reorder. Your membership renews yearly, and you can inform us at anytime to stop renewal at the end of your annual cycle.
Your at-home test kit is shipped shortly after you join. Once you’ve collected your sample and posted it back, your results and personalised dashboard are typically ready within 72 hours of your sample reaching the lab.
Our experts believe that every six months is the optimal frequency for blood testing. This timeframe allows you to track meaningful changes in your biomarkers and see the impact of any adjustments you make to your wellbeing journey. Testing too frequently may not provide enough time for significant shifts to occur, while waiting longer than six months could mean missing key wellbeing insights and acting accordingly.
