Biomarkers are a range of measurable health indicators. For example, your testosterone reading is a biomarker. If your biomarkers fall outside of the expected levels, it could suggest an underlying issue.

How do you use a home blood test?

Each blood test is easy to use, even if you’ve never used a home blood test kit before. It only takes a small amount of preparation to successfully collect a blood sample and all the equipment you need to do so is included in the kit. A summary of how to use the tests: Wash your hands in warm water for 4 minutes and then dry them. Use the lancet provided to prick your finger and collect a blood sample. Post your sample to our accredited partner laboratory using the prepaid envelope included with your test. Full instructions are provided with your test, which you should read thoroughly before use to ensure the best results. To learn more about how to take a blood test at home, click here .

How long do blood test results take?

You should receive your blood test results three to five working days after you post your blood samples. You’ll get an email notifying you that your results have arrived in your Numan account, so keep an eye on your inbox so you don’t miss them. Additionally, you’ll receive a written review of your results from one of our clinicians, which you can read alongside your results to help you understand them. Once they’re in your account, you can view your results any time you wish. You can also view them in-app and save your results as a PDF to help you keep track of them (and show them to your GP if need be).

Can I really use this kit without professional supervision?

Yes. It’s designed to be taken at home and we’ve included detailed instructions to help you through the process. We’ll also break down your results into simple, easy-to-understand language, so you’ll learn where you stand and how you can improve your heart health.

How often do I need to take the test?

It’s generally a good idea to take your test every few months, although since every patient is different there’s no set timescale. If you’re unsure, you can ask our clinical team.

Does taking a blood sample with a home blood test hurt?

Each test is a finger prick test, so you may feel a small scratch when you use the lancet provided with it to take a blood sample. This is only temporary, and any discomfort should subside swiftly afterwards.

What happens if my biomarkers change?

Small changes to your biomarkers are normal and generally nothing to worry about. However, any significant changes in your health markers should prompt a discussion with a healthcare professional. They can provide context, possible explanations, and guidance.

Can the test identify undiagnosed health issues?

The test can only indicate rather than diagnose health issues. If you’re worried and suspect you might have an underlying health condition, we advise speaking to your regular doctor first. If you get any unexpected or unusual test results, this should also be flagged and discussed in more detail with your doctor.

TRACK YOUR TESTOSTERONE LEVELS

TESTOSTERONE BLOOD TEST

Q: Why should I take a Testosterone Blood Test?

This test tracks the testosterone levels in your blood, a hormone essential for sex drive, muscle mass, fertility, and mood. This test can establish whether you have low testosterone levels.

Biomarkers tested: 5

Results received in: 3-5 days

Price:£68.00£54.40 / kit

Get 20% Off At-Home Blood Tests

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Deep dive into your health

Test and track the total level of testosterone in your blood, a hormone essential for sex drive, muscle mass, fertility, and mood. This test can establish whether you have low testosterone levels.

Key insights into your testosterone

What is testosterone?

Testosterone is a sex hormone that’s vital for men’s health. Produced in the testes, the hormone supports key male functions including sex drive, ability to get and maintain erections, fertility, muscle mass, and mood.

Why is testosterone important?

To ensure healthy bodily functions, you must have a certain level of the hormone. Lower levels of the hormone can, in some cases, impact libido, sexual function, energy, muscle mass, and mood.

What insights will I get?

The Testosterone Blood Test measures five key biomarkers to give you an accurate testosterone reading. See the descriptions below for each biomarker tested.

BIOMARKERS

Which biomarkers are tested?

Click on each biomarker to get insights into what it is and how it affects your health.

Total testosterone Free testosterone Albumin FAI SHBG

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It’s such a convenient way to check on your health. It doesn’t involve taking time out of your schedule to visit a doctor.

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I often find that I don’t have time - time to look after myself, time to get to the doctor, time to prioritise my health. But by taking this test, I have given myself more time.

Richard

I have been trying through the NHS for 3 years and had no success. Once Numan highlighted what the deficiency was I got my doctor to confirm the results which were indeed accurate.

Craig

Refreshingly quick and easy to complete. The results were back in two working days with a succint, clear and useful analysis along with the full results.

I was incredibly impressed with the number of tests carried out from just two small tubes of blood, but even more impressed with the explanation of each biomarker and how my own results compared.

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I was provided with all the information about the benefits of taking certain supplements and any of my questions were answered. Results for blood test were returned quickly, along with any products I ordered.

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FAQS

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Knowledge

Blood tests: what you need to know

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10 tips to help you take a finger-prick blood test

To help you take a finger-prick blood test, , we’ve put together a list of tips to ensure you carry out the test safely and effectively.

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3 minute read

How do you take an at-home blood test?

Need to take a finger prick blood test at home but aren’t sure what to expect? Our Clinical Product Manager Mo has recorded a short video to guide you through it.

blood tests

2 minute read

What causes errors in blood test results?

When it comes to blood tests, problems with the blood sample collected can lead to errors in the results. This is common, and there are a number of possible reasons why this might happen.

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DEEP DIVE INTO YOUR HEALTH

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Updated: 05/12/2025

TRACK YOUR TESTOSTERONE LEVELS

TESTOSTERONE BLOOD TEST

Biomarkers tested: 5

Results received in: 3-5 days

Price:£68.00£54.40 / kit

Get 20% Off At-Home Blood Tests

Get started

Deep dive into your health

Test and track the total level of testosterone in your blood, a hormone essential for sex drive, muscle mass, fertility, and mood. This test can establish whether you have low testosterone levels.

Key insights into your testosterone

What is testosterone?

Why is testosterone important?

To ensure healthy bodily functions, you must have a certain level of the hormone. Lower levels of the hormone can, in some cases, impact libido, sexual function, energy, muscle mass, and mood.

What insights will I get?

The Testosterone Blood Test measures five key biomarkers to give you an accurate testosterone reading. See the descriptions below for each biomarker tested.