Testosterone Blood Test
Check your total testosterone levels that could be affecting muscle strength, energy, libido, and mood.
£29
Results in 2 working days
12 Biomarkers
The male hormone test is a comprehensive at-home blood test that measures testosterone, oestrogen, and other key biomarkers linked to energy, mood, body composition and sexual health.
Why test? Hormone imbalances can affect how you feel physically and mentally every day. Testing can help you get clearer answers to ongoing symptoms and feel more in control of your health.
All samples are analysed by NHS-accredited UK laboratories and reviewed by GPs, with personalised insights and health dashboard included. Available at home or in-clinic.
£89
3 Interest-free payments Learn more
What gets tested?
12 Biomarkers
Blood sample collection options
WHEN TO TAKE THE TEST?
Collect your blood sample within 3 hours of waking.
12 Biomarkers
Testosterone
This test measures both total testosterone and free testosterone which is the biologically active form. Produced mainly by the testicles, testosterone plays a critical role in several key functions. It regulates sex drive (libido), bone mass, fat distribution, muscle mass and strength, and the production of sperm.
Proteins
Proteins like albumin and sex hormone-binding globulin (SHBG) bind to testosterone in the blood. Measuring testosterone includes total levels (bound and unbound) and free testosterone, which is not bound to these proteins.
Oestradiol
Oestradiol, a form of estrogen, though typically associated with female health, is also important for men. It plays a role in bone health, libido, and regulating body fat. Balanced oestradiol levels are crucial for maintaining strong bones and optimising muscle mass.
Luteinising Hormone (LH)
Luteinising hormone (LH) regulates testosterone production, crucial for muscle strength, energy levels, and recovery in men. For athletes, maintaining healthy LH levels enhances performance and endurance. Monitoring LH ensures optimal testosterone balance, supporting overall physical development and reproductive health.
Follicle Stimulating Hormone (FSH)
Follicle-stimulating hormone (FSH) regulates sperm production and also plays a role in maintaining healthy testosterone levels. Low FSH levels can signal hormonal imbalances, fertility issues, and testicular dysfunction.
Prolactin
Prolactin is a hormone produced by the pituitary gland. It has more than 300 functions including those relating to the reproductive system. Levels can be influenced by stress, so exercise or high-stress environments can lead to transient increases. Monitoring prolactin helps detect hormonal imbalances and potential pituitary disorders.
Cortisol
Cortisol, produced by the adrenal glands, is crucial for regulating metabolism, reducing inflammation, and managing stress responses in men. It influences blood sugar levels, energy production, and immune function. High levels can indicate overtraining, injury or stress while low levels can indicate fatigue, illness, or problems with the pituitary or adrenal gland.
Thyroid Hormones
Thyroid hormones help to control the rate at which your body converts food into energy. Thyroid imbalance can lead to problems with weight, energy and mood.
The Tasso device offers a virtually painless way to collect your blood sample at home. Simply apply it to your upper arm and the gentle vacuum does all the work — no needles, no fuss, all done in minutes.
Available as an optional add-on at checkout (+£20).
Watch how it worksGetting the insights you need to improve your health has never been easier.

It only takes a few minutes to collect a small blood sample from your fingertip for the male hormone blood test. Use the Tracked-24 envelope included in your kit to securely send it to our labs.

You’ll receive your results within 2 working days of your sample reaching our lab. You can view them in our mobile app, including key insights into your male hormone levels, an optional doctor’s comment, and a detailed report.

Your detailed report highlights areas for improvement, helping you make informed changes to balance hormones, boost performance, and track progress.
With our at-home hormone tests, you can:
In June 2025, Forth analysed more than 20,000 blood test results, with the aim of examining testosterone levels among men and women in the UK across different lifecycle milestones. The analysis reported median total testosterone by age and sex, showing a gradual decline in the male and female median across the age bands from 18–29 through to 60+. For men aged 18–49, Forth also reported that 74.3% fall within the NHS reference range of 8.6–29 nmol/L, and 46.3% meet its tighter 15–29 nmol/L functional range.
| Age band | Median (male) nmol/L | Median (female) nmol/L | NHS male reference range, 18–19 |
| 18–29 | 17.5 | 1.3 | 8.6–29 |
| 30–39 | 17.3 | 1.01 | 8.6–29 |
| 40–49 | 16.8 | 0.8 | 8.6–29 |
| 50–59 | 16.5 | 0.7 | – |
| 60+ | 16.4 | 0.6 | – |
Source: Median total testosterone by age and sex (nmol/L). Source: Forth, 2025 UK Testosterone Statistics. Sample: 20,000+ blood test results. Analysis date: June 2025
40% of Forth customers have a Male Hormone Health Score below the healthy range. Unlock your scores, get personalised targets and take control of your hormone health with HealthCoach
"Our Male Hormone Test evaluates testosterone levels and other hormones related to vitality and well-being. This information helps identify conditions like low testosterone, guiding tailored treatments that can improve energy, libido, mood, and overall quality of life, promoting better health and vitality."
Dr Thom Phillips
Clinical lead
Our team of specialist doctors, dieticians and biomedical scientists are here to help you be in the best of health.
This is what our customers ask us about the most. For more information, try our help centre.
What is a male hormone test?
A male hormone test measures key hormone levels in your blood that influence energy, mood, libido, muscle mass, fertility and overall wellbeing. These tests are designed to help identify hormonal imbalances – including low testosterone – and provide insight into how your hormones are affecting your health.
When is the best time to check male hormone levels?
For the most accurate testosterone reading, it’s best to take your sample in the morning between 7am and 10am. This is when testosterone levels are at their highest. Forth’s tests are designed with this in mind, so you can collect your sample at home at the right time.
What are the main male hormones?
What are the main male hormones?
What blood test checks male hormone levels?
The best way to check your hormone levels is through a venous or finger-prick blood test. At Forth, our at-home male hormone tests analyse key biomarkers like testosterone, free testosterone, SHBG, LH, and oestradiol – giving you a clearer picture of your hormonal health.
Do you have hormone tests for men on TRT?
Yes – our male hormone test can help men on testosterone replacement therapy track markers and manage their health. It includes key markers such as total testosterone, free testosterone, oestradiol and SHBG, helping you and your clinician monitor how your treatment is working and make any necessary adjustments.
What does this test check?
Our male hormone blood test checks your free and total testosterone – which can indicate if your testosterone levels are too high or too low.
It also checks other key hormones that can impact or are impacted by your male hormones, such as cortisol, oestrogen, luteinising hormone (LH) and sex hormone-binding globulin (SHBG).
Your thyroid function – Thyroid Stimulating Hormone (TSH), Thyroxine (T4 free direct) and Triiodothyronine (T3 free) – is checked too, as low testosterone is often linked with hypothyroidism (underactive thyroid).
What causes a male hormone imbalance in men?
Male hormone imbalances can be caused by various lifestyle factors such as a poor diet, too little or too much exercise, being overweight, and stress. Medical conditions such as hypogonadism where the testicles don’t produce enough testosterone can also cause an imbalance. Testing your male hormones can help you understand the cause of an imbalance, such as low testosterone.
What are the symptoms of a male hormone imbalance?
A male hormone imbalance, particularly involving testosterone, can cause a variety of symptoms. You should consider getting your blood tested if you have any of the following symptoms:
I’m using TRT, can I use this blood test?
Yes, our male hormone blood test is suitable for all men aged 18 or over, including those using TRT. If you’re using TRT gel, we recommend taking the blood sample from a finger on the hand you don’t apply the gel with, or using a glove when applying it. This is to avoid contamination of your blood sample.
Testing your hormone levels can be extremely beneficial to men using TRT, as it provides clear insights into how it impacts your hormone levels and overall health.
How do I treat a hormone imbalance?
There are many ways you can treat a male hormone imbalance. If your test results show an imbalance, such as low testosterone levels, you should consider lifestyle changes, such as eating a healthy diet, exercising (or reducing exercise if you already exercise a lot), reducing stress (cortisol) and improving your sleep.
In some cases, you may need to speak to your doctor or hormone specialist about testosterone replacement therapy (TRT). TRT is available in different forms, including gels, patches and injections, which all help with restoring your testosterone levels to their “normal” levels.
Can I have someone take my blood for me?
Yes. We offer two options if you do not want to do our finger prick test. The first is a home appointment where a nurse comes to your home to take a blood sample. The second is to visit a Phlebotomy clinic near you that offers a blood sample service.
Are my results confidential?
We take your privacy seriously and all data is private and confidential. You’ll be asked to create an account when you order your test, which is where you can view your results. You’ll be able to share your results with your GP or healthcare specialist if you want to, but we won’t share your data with anyone.
You can also opt out of having a doctor comment on your results for extra privacy.
When will I get my results?
We use the Royal Mail Tracked-24 services to post your kit to you, which includes a Tracked-24 pre-paid envelope for you to return your blood sample to our labs.
Once your sample reaches our labs, we aim to get your male hormone results to you via the app within 2 days.
Are home finger-prick testosterone tests as accurate as a venous blood draw?
Although finger-prick testing can measure testosterone, a venous collection is preferred when users are concerned about sample volume or contamination. Forth offers finger-prick collection for its male hormone test, alongside AutoDraw and venous collection options. A nurse-collected sample is a reliable alternative where this limitation matters.
When should you not take a male hormone test?
NHS laboratories advise avoiding testing during acute illness and while taking short-term medicines that suppress testosterone. Therefore, male hormone testing should be delayed if an individual is recovering from an illness or if their circumstances may affect the result. This is because acute stress, some medicines, and supplements can influence hormone measurements. Individuals should speak to a GP before buying a home test if the symptoms are concerning or if they have an underlying condition.
What can a male hormone test not tell you?
While a male hormone blood test measures hormone levels, it does not by itself diagnose the cause of an abnormal result. Equally, an in-range result does not rule out a problem. The results should be interpreted alongside symptoms, medical history, and, where appropriate, repeat testing. According to the NHS guidance, conditions such as testosterone deficiency are assessed using both symptoms and blood-test results. Therefore, a result outside or inside a reference range should not be treated as a diagnosis on its own.
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