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.

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.

Q: 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:<ul><li>Wash your hands in warm water for 4 minutes and then dry them.</li><li>Use the lancet provided to prick your finger and collect a blood sample.</li><li>Post your sample to our accredited partner laboratory using the prepaid envelope included with your test.</li></ul>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 <a href="https://www.numan.com/numankind/how-to-take-an-at-home-blood-test" target="_self" linktype="url">here</a>.

Q: 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).

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Misdiagnosed, ignored, underreported - but low testosterone is real, and it’s affecting millions of men every day.

Biomarkers tested: 5

Results received in: 3-5 days

From£58.00 / kit

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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.

Low testosterone: the hidden health crisis

Low testosterone can harm your wellbeing, and health issues can worsen it. Numan dives deep to get to the root of the problem.

1 in 4 men affected
Low testosterone impacts a significant portion of the male population, with prevalence increasing to 40% in men over 45
_{Andre B. Araujo, Gretchen R. Esche, et al. Prevalence of Symptomatic Androgen Deficiency in Men, The Journal of Clinical Endocrinology & Metabolism, Volume 92, Issue 11, 1 November 2007, Pages 4241–4247}
Low-T in 1/3 of ED cases
Testosterone deficiency reduces libido, impairs blood flow to the penis, and affects penile tissue health 
_{Slag MF, Morley JE, Elson MK, et al. “Impotence in Medical Clinic Outpatients.” JAMA (1983).}
90% go untreated
In fact, many men are misdiagnosed with having depression 
_{Layton et al, 2017. Journal of clinical endocrinology and metabolism. Transl Androl Urol. 2017;6(2):183-191.}
Up to 2x more likely if overweight or diabetic
Men who are obese or have type 2 diabetes face a significantly higher risk of low testosterone
_{Kapoor D, Malkin CJ, Channer KS, Jones TH. “Androgens, Insulin Resistance and Vascular Disease in Men.” Clin Endocrinol (Oxf) (2005).}
Up to 3x more likely to be depressed
Low testosterone is strongly associated with an increased risk of depression
_{Shores MM, Sloan KL, Matsumoto AM, Moceri VM, Felker B, Kivlahan DR. “Increased Incidence of Diagnosed Depressive Illness in Hypogonadal Older Men.” Arch Gen Psychiatry (2004).}

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

SYMPTOMS

The signs of low testosterone

If these symptoms are holding you back, at-home blood tests can provide an easy and straightforward way to assess your testosterone levels.

Assess your testosterone levels

Erectile dysfunction

Low-T reduces nitric oxide synthesis, which is essential for the vessels carrying blood to the penis.

Decreased libido

Low-T reduces the hormonal stimulation necessary for sexual desire and arousal.

Fatigue

Low-T reduces production of red blood cells, which impairs oxygen delivery to tissues and decreases overall energy levels.

Poor sleep

Low-T reduces the production of melatonin, a hormone essential for promoting restful sleep.

Mood changes

Low-T alters the levels of serotonin and dopamine, key neurotransmitters involved in regulating emotions.

Difficulty concentrating

Low-T impacts neural circuits involved in attention and executive function, thus diminishing cognitive performance.

Loss of muscle mass

Low-T reduces protein synthesis and increases protein breakdown in muscle tissue.

Increased body fat

Low-T slows metabolism, increasing fat storage in the body.

Reduced facial and body hair growth

Low-T shortens the time hair spends growing, resulting in thinner hair.

Assess your testosterone levels

TAKE AN EFFORTLESS SAMPLE

Say goodbye to finger pricks

With the Tasso+ device, you can easily collect blood in seconds without pricking your finger. Attach the device to your upper arm and press—it's as simple as that.

Order with Tasso+ device

How to use Tasso+

NUMAN BLOOD TESTS

How it works

STEP ONE

Order your at-home test

Order your at-home test and get free 48-hour letterbox delivery.

STEP TWO

Collect your blood sample

Follow the simple instructions in your finger-prick blood test. Return your sample for free.

STEP THREE

Get personalised results

Get your personalised results with actionable insights from our experts in 3-5 days.

Pause or cancel anytime

How to collect your sample

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4.4* from over 15,000 men like you.
Trusted
Regulated by the Care Quality Commission.
UK licensed
Medications and clinicians.
Free, discreet delivery
No names, no logos, no delivery fee.
Ongoing clinical support
Access expert clinicians and medical advice.
Pause or cancel any time
You're always in control of your treatment.
Innovative treatments
Advanced, clinically-proven medications.
Rated excellent on Trustpilot
4.4* from over 15,000 men like you.
Trusted
Regulated by the Care Quality Commission.
UK licensed
Medications and clinicians.

FAQS

Your questions answered

What are biomarkers?

Why should I take a Testosterone Blood Test?

How do you use a home blood test?

How long do blood test results take?

Can I really use this kit without professional supervision?

How often do I need to take the test?

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

What happens if my biomarkers change?

Can the test identify undiagnosed health issues?

REAL PEOPLE, REAL IMPACT

Over 500,000 people have come to us to improve their health

I put off getting a private blood test for 12 months and felt terrible for all of that time. If I’d gone ahead 12 months ago my issues could have been resolved then.

Will

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.

Knowledge

Blood tests: what you need to know

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DEEP DIVE INTO YOUR HEALTH Understand root causes and track key biomarkers with regular blood tests.

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TESTOSTERONE BLOOD TEST

Deep dive into your health

Low testosterone: the hidden health crisis

Low testosterone impacts a significant portion of the male population, with prevalence increasing to 40% in men over 45

Testosterone deficiency reduces libido, impairs blood flow to the penis, and affects penile tissue health

In fact, many men are misdiagnosed with having depression

Men who are obese or have type 2 diabetes face a significantly higher risk of low testosterone

Low testosterone is strongly associated with an increased risk of depression

BIOMARKERS

SYMPTOMS

The signs of low testosterone