What should I do to prepare for my Testosterone Blood Test?

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.

When should I take my Testosterone Blood Test?

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.

Can I use the Testosterone Blood Test to monitor testosterone replacement therapy (TRT)?

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.

Is this Testosterone Blood Test suitable for women?

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.

Personalise your test

Upgrade to Free and Bioavailable Testosterone Test

Popular

Included 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 available

Choose how to collect your sample

4 options

Finger-prick blood collection

Free

Total price:

£35.00

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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.

71,206

reviews on

Results and doctor's report in 2 days or less

Free, next-working day delivery

Optional "free testosterone" test upgrade

Your questions answered

What 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.

: 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.
: 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.
: 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
: 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
: 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
: 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

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

Total Testosterone level (nmol/L)	Meaning
<0.3	Low
0.3 - 1.8	Normal
>1.8	High

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 Testosterone Test

In the standard testosterone test we measure your total testosterone level.

Free and Bioavailable Testosterone Test

Testosterone is bound to proteins in the blood which inactivate it. We can account for this to calculate the amount of "free" testosterone which is actually available for your body. This is a more accurate measure than total testosterone alone. For women we calculate the free androgen index (FAI).

What's measured: (Click on a test for more info)

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).

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.

Get in touch

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.