Testosterone test kit
Get clarity on your testosterone status with our home test kit
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Check your testosterone levels from the comfort of your own home using our testosterone test kit. The kit contains everything you need to take a small blood sample using a finger-prick lancet device and send it to our partner laboratory for analysis. You should receive your results within 3 working days of the lab receiving your testosterone test sample. One of our doctors will review your results and give you advice about what to do next, and if you have low testosterone, they can provide repeat prescriptions of testosterone treatment if you are already taking it.
You can request an at-home testosterone test kit from Asda Online Doctor by completing a short online health questionnaire for one of our doctors to review. If approved, your kit will be delivered to your door in discreet packaging without the need for a face-to-face appointment. Alternatively, you can collect it from your nearest Asda Pharmacy.
â–¶ This at-home testosterone blood test is for men, but you can request a testosterone test for women from our testing service.
About home testosterone testing
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The testosterone test kit is an accurate way to measure your total testosterone (all the testosterone in your blood that’s found freely in the blood and bound to proteins) at home without seeing your doctor in person. Testosterone is the main sex hormone in men and has several important roles in the body. It can influence your:
- sex drive and function
- energy levels
- muscle strength and mass
By providing a small blood sample, our partner lab can then work out whether your levels are low, normal, or high. If they are low and you are known to have previously been diagnosed with low testosterone, our doctors can prescribe repeat testosterone treatment to help manage the symptoms you may be getting and help bring your levels back to normal.
However, you must have been prescribed it previously by your doctor, as we can only provide repeat prescriptions. We cannot start testosterone therapy for the first time, but if our doctors think you need it, we can provide information on what to do next.
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If your testosterone levels are low, it can mean that your testicles are not making enough of the hormone, also known as hypogonadism or testosterone deficiency, which can lead to physical and emotional symptoms, including:
- erectile dysfunction
- mood changes
- depression
- loss of muscle mass
- low sex drive
- weight gain
- the growth of breast tissue
- reduced beard and body hair growth
- difficulty concentrating
Testosterone production rises during puberty and helps to build muscle strength and mass, develop body hair, and make sperm. After the age of 30, testosterone in men starts to decline, and older men tend to have lower testosterone levels than younger men. It’s estimated that between 10 and 40% of men are affected by low testosterone levels.
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The home testosterone test kit comes with everything you need to provide a small sample of blood using a finger-prick device called a lancet. Once you have collected your blood sample, you should post it back to our partner lab for analysis as soon as possible. They will measure the total testosterone in your blood to check whether your levels are high, normal, or low.
It is best to collect your sample as soon as you wake up in the morning and before you eat because your body naturally makes more testosterone at this time. So, collecting your blood sample at this time will give the most accurate results.
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To collect your sample, you need to:
- Wash and dry your hands thoroughly.
- Place the blood collection tube in one of the smaller holes in the tray to keep it upright. Remove the cap and set it aside while you take your sample.
- Choose the finger you are going to collect your sample from – the side of your middle or ring finger is best. Open the pack of lancets.
- Use the alcohol swab to clean the chosen finger and wipe dry with a clean piece of tissue.
- Remove a lancet from the bag and twist and remove the stick. The lancet is ready for use.
- Place the lancet against your finger and push firmly against your skin until you hear a click.
- Wipe away the first drop of blood with a clean tissue.
- Holding your hand downwards, firmly massage your hand down to your finger to encourage blood flow and allow the blood to drop into the blood collection tube.
- Fill the tube to the upper line printed on the side of the tube.
- Once the tube is filled to the top line, stop collecting. Clean your finger with a moist wipe, dry with a tissue, and apply the spot plaster to stop the bleeding if needed.
- Push the cap on the blood collection tube until you hear a click. Now, gently invert the collection tube 5 to 10 times.
- Make sure the tube is clearly labelled with your details and place it into the transport pouch.
- Seal the pouch and post it back to our partner laboratory.
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You should consider a home testosterone test if you have any symptoms of low testosterone, like a low sex drive, erectile dysfunction, infertility, or signs of a hormonal imbalance. If you are getting any of the following symptoms and are worried that your testosterone levels may be low, request a test or speak to a doctor:
- fatigue or low energy levels
- loss of muscle mass or strength
- weight gain or increased body fat
- reduced hair growth on the face and body
- depression
- mood swings
- bone density loss or osteoporosis
You might consider getting a testosterone level test if you have any of the following medical conditions:
- history of infertility
- diabetes
- HIV or AIDS
- pituitary gland disorders
- early or delayed puberty
- chronic drug use
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When you receive your results via your patient account, they will tell you whether your testosterone levels are high, low, or normal. One of our doctors has already reviewed your results and provided advice on what you should do next.
If your sample shows you have low testosterone levels, you will need to repeat the test after 4 weeks to see if they are still low. If they are, your doctor may recommend further blood tests and testosterone replacement therapy if you are getting symptoms.
Testosterone ranges for men (according to statistics provided by our partner laboratory, TDL) are:
Low Less than 7.6 nanomoles per litre (nmol/L)
Normal 7.6 to 31.4nmol/L
High More than 31.4nmol/L
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If the testosterone test comes back with a low testosterone result, it’s likely that your body is not making enough of this hormone, which could be impacting your quality of life. Testosterone replacement therapy may help, but at Asda Online Doctor, our doctors are unable to start treatment.
Instead, we can provide treatment with testosterone replacement therapy for men who have been diagnosed with and investigated for testosterone deficiency and who are already taking treatment and have ongoing monitoring for this.
Can untreated low testosterone be dangerous?
It’s important to get treatment if your testosterone levels are low because, left untreated, it can increase the chance of other health conditions, like:
- heart disease
- liver problems
- weak bones (osteoporosis)
- fluid retention
- sleep apnoea
More worryingly, men with the lowest testosterone levels have a 40% greater chance of dying than those with higher levels, so getting tested is important. Alongside your health, low testosterone levels can also reduce your quality of life because they can affect your:
- mood
- relationships
- sex life
- energy levels
- memory
- concentration
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If you have already been diagnosed with low testosterone levels and have been prescribed testosterone replacement therapy, you can request repeat treatment from us. At Asda Online Doctor, our doctors can prescribe a range of treatments.
Tostran gel
Tostran gel contains 2% testosterone and can be prescribed if you have been diagnosed with hypogonadism. It is applied to your skin and delivers testosterone into your bloodstream to help you achieve and maintain normal testosterone levels. Tostran gel can also be used alongside erectile dysfunction treatments like Viagra and Cialis, if needed.
Testogel
Testogel is another type of testosterone replacement therapy which is available in gel form. It is available in sachets or a pump. At Asda Online Doctor, we provide Testogel sachets. They are applied directly to the skin, and testosterone is delivered into the bloodstream to help your levels return to normal.
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Frequently asked questions
How accurate is an at-home testosterone test compared to a clinic test?
Some research suggests there is some variability between home testosterone test kits. However, the biggest variability was found in female testosterone test kits. To make sure our test kits have a high level of accuracy, they:
- require a blood sample rather than saliva
- are analysed by a UK-based accredited laboratory (TDL)
- should be used first thing in the morning when testosterone levels are known to be at their highest
When should I take my testosterone test?
You should collect your sample for the home testosterone test first thing in the morning or as soon as you wake up and before you eat, as this is when testosterone levels are at their highest.
Can I use this test if I'm on TRT (testosterone replacement therapy)?
Yes, you can take the home testosterone test if you are on testosterone replacement therapy because it can help you monitor your levels during your treatment.
How often should I test my testosterone?
Once you have started testosterone replacement therapy, you will have a blood test after 3 and 6 months of treatment, and then once a year to make sure your levels are within a safe and normal range.
What's the difference between total and free testosterone?
Total testosterone measures the amount of testosterone in your blood, including any of the hormone that is and is not attached to proteins, while free testosterone only measures the active forms that are not bound to proteins.
Can women use this test?
No, but you can request a home testosterone test for women from Asda Online Doctor. The normal levels of testosterone for women are different, so it is important that you request the right test.
After completing her first degree, she went on to study graduate-entry medicine at Warwick University. After graduating as a doctor, she worked within the West Midlands in Urology, Respiratory Medicine, Infectious Disease, and Psychiatry before transitioning into a full-time medical communications role.
Meet our doctorsLast reviewed: 05 Dec 2025
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Awareness and prevalence of the symptoms of testosterone deficiency: a cross-sectional survey of community-dwelling men in the UK, British Medical Journal (BMJ) Open [accessed 25 November 2025]
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Capillary Blood Collection Kit (SST), TDL [accessed 25 November 2025]
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Low Serum Testosterone and Mortality in Older Men, The Journal of Clinical Endocrinology & Metabolism [accessed 25 November 2025]
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Measurement of total serum testosterone levels using commercially available kits: high degree of between-kit variability, Fertility and Sterility [accessed 25 November 2025]
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Safety and efficacy of testosterone gel in the treatment of male hypogonadism, Dovepress [accessed 25 November 2025]
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