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Maidstone, Exeter and Plymouth are now open!
Maidstone, Exeter and Plymouth are now open!


Finger-prick kit for next-day results. We can test for 300+ biomarkers, covered by a retest guarantee.

Take control of your well-being and optimise your training performance with One Day Tests' convenient home blood test kits. Whatever you want to monitor, we’ve got you covered with over 300 biomarkers available to test and track.

These tests are available at any of our clinics (we take blood from your arm) or via an easy blood test kit (finger prick).

Our MHRA-regulated kits ensure reliable and accurate results, while effortless sample return and fast turnaround is a guarantee with our trusted delivery partners. 

Whenever you book a blood test with us, you also get personalised insights through our innovative Health Dashboard tool, which lets you see how your biomarkers change over time. You’ll be able to see how changes in diet and training affect your biomarkers, and make informed decisions to optimise your performance.

And with a significant discount on future blood tests with our subscription offer, monitoring your performance and well-being has never been easier or more cost-effective.

Embrace a healthier future with One Day Tests' home blood test kits.

  • Original price £190.00 - Original price £190.00
    Original price
    £190.00 - £190.00
    Current price £190.00
    This is the true Best Seller of our range. An ultimate screen to do annually or as a baseline. Covers everything you need for a...
    Biomarkers: 57

    About the test This is a huge health screen panel, offering a full body systems health check via a blood test. It is a comprehensive set of tests ...

    View full details
  • Original price £55.00
    Original price £55.00 - Original price £55.00
    Original price £55.00
    Current price £49.00
    £49.00 - £49.00
    Current price £49.00
    The first step in identifying potential health issues and monitoring and diagnosing disease. Abnormal FBC results can be indica...
    Biomarkers: 15

    About the test Take control of your health with a Full Blood Count Test (FBC including DIFF) - the first step in identifying potential health issue...

    View full details
  • Original price £39.00 - Original price £39.00
    Original price
    £39.00 - £39.00
    Current price £39.00
    Elevated CK levels may indicate muscle damage or disease, over exercise or other issues such as myocardial infarction or muscul...
    Biomarkers: 1

    Stay ahead of the curve by understanding your muscle and heart health with our Creatine Kinase (CK) Blood Test for monitoring of muscle, cardiac an...

    View full details
  • Original price £89.00 - Original price £89.00
    Original price
    £89.00 - £89.00
    Current price £89.00
    A GP favourite, also known as U&Es, covers everything you to measure your electrolyte levels and a few extras thrown in.
    Biomarkers: 7

    About the test Electrolytes are the salts and minerals that are dissolved in your blood stream. They are vital for conducting nerve impulses, causi...

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  • Original price £190.00 - Original price £190.00
    Original price £190.00
    £290.00 - £290.00
    Current price £290.00
    The largest and most complex test we do. One test to rule them all that covers everything you need.
    Biomarkers: 57

    About the test This is our largest health screen panel, offering a full body systems health check and insights, via an immense panel of blood test...

    View full details

Your Health, Unveiled: The Power of Our Health Dashboard

Unleash the potential of your health journey with One Day Tests' Ultimate Performance Blood Test. Experience the convenience of secure PDF results emailed directly to you and uploaded to our exclusive Health Dashboard. Built on cutting-edge clinical analysis research, our Health Dashboard matches your biomarkers across test panels and symptoms, offering clinical commentary on each individual biomarker.

Gain a panoramic view of your health with "panel level" commentary, comparing your results over time for a comprehensive understanding of your progress. Detect changes in biomarkers, make informed lifestyle adjustments, and take charge of your performance and training.

Achieve Peak Performance With Continuous Monitoring Subscriptions

Make your health a priority through regular monitoring. Our subscription plans offer discounted future tests, tailored to your chosen frequency. Seamlessly receive home test kits or book clinic appointments, while our Health Dashboard automatically updates your results.

No minimum tests are required, and you have the flexibility to pause, cancel, or restart anytime. Take control of your performance journey and save with our subscription plan.

How It Works

  • Collecting your sample:

Our finger-prick blood test kits ensure a hassle-free procedure every time. Follow provided instructions for a quick 10-15 minute blood sample collection at home, guaranteeing simplicity and safety.

  • Sending your sample:

Return your sample promptly using the prepaid envelope. Drop it at a Priority Mailbox or our clinics for secure and expedited delivery to our CQC-regulated laboratory.

  • Swift and accurate testing:

Our in-house lab processes venous and capillary samples with precision, matching the quality of our clinic tests. Expect rapid results, often on the same day, for prompt action and peace of mind.

  • Your results, your empowerment:

Receive comprehensive results covering 300+ biomarkers, accompanied by detailed interpretation notes. Take charge of your health, make informed decisions, and embrace a better future.

Experience the convenience and reliability of One Day Tests' home blood test kits. No appointments or GP referrals needed. Order now and seize control of your well-being with confidence.

How to take your blood sample at home

In this video our Clinical Director, Dr. Adam Staten, explains how the sample should be taken at home, so that the results are in the best possible state when they arrive at our diagnostics laboratory.

MHRA Regulated IVD Blood Collection Kit

Blood tests for athletes

We offer a huge range of tests that help anyone take control of their health. But for invaluable insights into athletic performance and well-being, choose our Ultimate Performance Blood Test. This is our most comprehensive set of tests to give unparalleled insight into your current health and performance.

Or, browse our other tailored tests below. 

For Nutrition

Fasting Glucose Blood Test

Ultra Accurate Diabetes (HbA1c) Blood Test


Cholesterol Blood Test

Total Protein Blood Test

Sex Hormone Binding Globulin (SHBG) Blood Test

Urea Blood Test

For Metabolic Health

Vitamin D (25-OH) Blood Test

Vitamin B12 Blood Test

Folate - Folic acid - Vitamin B9 Blood Test

Iron Studies Blood Test

For Muscle Status 

Testosterone Blood Test

DHEA-S Blood Test

Insulin-Like Growth Factor 1 (IGF-1) Blood Test

Luteinizing Hormone (LH) Blood Test

Cortisol Blood Test

Creatine Kinase (CK) Blood Test

C-Reactive Protein (Inflammation)

Custom requests or extra assistance

For personalised assistance, guidance, or inquiries about custom panels, our dedicated team of professionals is here to help.

If you need a custom panel tailored to your specific performance needs, we can create it for you. Operating our own laboratory means we can build a panel that addresses your unique concerns.

You can contact us at 0845 527 07 67, send an email to, or reach out to us via WhatsApp. We are readily available to answer your questions and assist you in any way we can.