Personalise your test
Upgrade to Free and Bioavailable Testosterone Test
PopularIncluded in Standard test:
- Total Testosterone
Free and Bioavailable Testosterone Test includes:
Everything in Standard plus
- Free Testosterone (calculated)
- Free androgen index
- Sex Hormone Binding Globulin (SHBG)
- Albumin
Add to your test
2 add-ons availableChoose how to collect your sample
4 optionsFinger-prick blood collection
Total price:
£35.00
Includes our
Testosterone Blood Test
Testosterone is a crucial hormone in males and females, affecting sex-drive, energy, mood, fertility, muscle mass and metabolic health.
Our Testosterone Blood Test is a simple blood test you can take at home and send to our lab for analysis to check your testosterone levels.
Results and doctor's report in 2 days or less
Free, next-working day delivery
Optional "free testosterone" test upgradeWhat you need to know about our Testosterone Blood Test
Testosterone is a crucial hormone for both men and women. Although women produce less testosterone than men, they still make three to four times as much testosterone as oestrogen.
We measure your total testosterone level to check if your testosterone is too low or too high.
Should I upgrade to include free testosterone?
If you want a more accurate measure of your testosterone status, you can upgrade to include a calculated "free testosterone" level.
This accounts for the fact that most testosterone is bound to proteins in the blood which inactivates it. The free testosterone level is a better measure of the testosterone that is actually available for your body.
In women, we use a slightly different calculation called the free androgen index (FAI) which is also included in the upgrade.
What is testosterone?
Testosterone is the main androgenic sex hormone in both men and women. In men, testosterone is produced in the testes in response to stimulation by luteinising hormone from the pituitary gland. In women, most testosterone is produced from the adrenal glands though some also comes from the ovaries.
In both men and women, testosterone plays a role in sex-drive, energy, fertility, muscle mass and metabolic health.
What causes low testosterone levels?
Testosterone levels fall naturally in both men and women from about 30 years of age. However, about 1-in-4 men over the age of 40 have low testosterone levels for their age. This can be caused by:
- Obesity
- Stress
- Poor sleep
- Too little exercise (particularly resistance training)
- Smoking and alcohol
- Diabetes
- Steroid use
- Injury to the testes
- Pituitary problems, including pituitary tumours
What are the symptoms of low testosterone?
Symptoms of low testosterone include:
- Erectile dysfunction (in men)
- Low sex-drive
- Lack of energy
- Low mood
- Infertility
- Difficulty building muscle
- Poor metabolic health - high cholesterol and poor sugar-handling
What are the symptoms of high testosterone?
High testosterone levels aren't usually a problem in men but they can cause issues in women. The main causes of elevated testosterone in women are polycystic ovarian syndrome (PCOS) and testosterone replacement therapy. Symptoms of high testosterone levels in women include:
- Acne
- Excessive hair growth - e.g. facial hair
- Deepening of the voice
- Infertility
What do my testosterone test levels mean?
Testosterone levels are different in men and women.
For men:
| Total Testosterone level (nmol/L) | Meaning |
| <8 | Very low testosterone - likely to benefit from testosterone replacement therapy |
| 8 - 12 (or 8 - 14 if pre-diabetic / diabetic) | Borderline low testosterone - may benefit from testosterone replacement therapy |
| >12 (or >14 if pre-diabetic / diabetic) | Normal |
For women:
| Total Testosterone level (nmol/L) | Meaning |
| <0.3 | Low |
| 0.3 - 1.8 | Normal |
| >1.8 | High |
How it works
Do your test
You'll get your kit next-working day.
Collect your sample at home and send it back to our UKAS-accredited lab for analysis.
Get rapid results
We'll let you know when the lab have received your sample for analysis.
You'll get your results and doctor's report in your online dashboard. You'll also be able to download your formal lab report to share with your GP if you wish.
Improve your health
Numbers are useful but it's what you do with them that counts.
We'll give you advice on how to improve your health based on your results. You can also book a consultation to discuss your results with one of doctors (costs extra).
What's tested in your testosterone test?
You can choose between our standard testosterone test or upgrade to include free testosterone. Free testosterone is a more accurate measure of the testosterone that is actually available for your body.
Standard Test
Total Testosterone
In the standard testosterone test we measure your total testosterone level only.
What's measured: (Click on a test for more info)
Tested in Free and Bioavailable Testosterone Test only
Free testosterone & free androgen index (calculated)
Measurement of free testosterone level and free androgen index
What's measured: (Click on a test for more info)
Testosterone Blood Test FAQs
In order to make your Testosterone Blood Test as accurate as possible, it’s important to prepare for it by:
- taking your blood sample between 6am and 10am.
- avoid taking a finger-prick sample from fingers that have been used to handle hormone gels/pessaries/patches in the past 4 weeks.
Testosterone levels peak in the morning so it's best to take your Testosterone Blood Test between 6am and 10am, when testosterone levels are at their highest.
Yes, our Testosterone Blood Test is ideal to monitor your testosterone levels if you are taking testosterone replacement therapy (TRT).
However, please avoid taking blood from fingers that have handled testosterone patches, tablets, gels or pessaries in the four weeks before testing, unless you were wearing gloves. Testosterone will stay in your skin and give a falsely high measurement.
Yes, both men and women can take this Testosterone Blood Test. Women actually have three to four times as much testosterone as oestrogen and it plays an important role in energy, libido, muscle mass, fertility and metabolic health. Women are most at risk of low testosterone after the menopause and testosterone replacement therapy has a role alongside traditional hormone replacement therapy (GRT).
Before the menopause women may also have problems because of high testosterone levels associated with conditions such as polycystic ovarian syndome (PCOS) which can cause irregular periods, infertility, acne and unwanted hair growth.
When we report testosterone results, we put testosterone levels into the appropriate reference ranges for men and women.
Still have questions?
If you have any questions, we're here to help. Our customer service team is hands-down the best you'll ever deal with. They're smart, friendly, knowledgeable and will get back to you in a flash.
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