


Complete TRT Assessment
This comprehensive venous blood test confirms your testosterone levels and assesses your suitability for testosterone replacement therapy (TRT).
- 39 markers covering hormones, heart, liver, kidney, thyroid, blood sugar and prostate
- Taken in a clinic or at home by a nurse
- Full medical report covering markers and symptoms with free doctor consultation

Here’s what one sample can tell you
Low T is only one reason you might feel like this. We check the others too, so you don’t treat the wrong thing:


Who is this test for?
For men who want a complete health screening and a clear answer on whether TRT is right for them.
What does this test measure?
39 biomarkers across eight areas of your health, giving our doctors everything they need to confirm low testosterone and prescribe safely.
Hormonal health
Total and free testosterone, SHBG, oestradiol, prolactin, LH and FSH, giving a full picture of how your body produces and uses testosterone.
Blood cells
A full blood count checks your red and white blood cells, which TRT can affect, so we know your baseline before treatment.
Heart health
Cholesterol, lipids and haematocrit help assess your cardiovascular risk, making sure it’s safe to start and continue testosterone therapy.
Kidney health
Kidney function markers confirm your kidneys are filtering properly and rule out any underlying conditions before treatment begins.
Liver health
Liver function markers check your liver is healthy, as it processes hormones and medication, and helps produce SHBG and albumin.
Thyroid health
TSH and free T4 check for an underactive or overactive thyroid, which can cause symptoms similar to low testosterone.
Blood sugar
HbA1c shows your average blood sugar over recent months, screening for diabetes, which is closely linked to low testosterone.
Prostate
PSA screens for prostate issues, which must be checked before starting TRT, as testosterone can affect the prostate.

How testing works

Book your test
Book your test
Book your venous blood test today.
Choose between a clinic visit, home visit, or test kit only (if you know someone qualified to take your sample). If you're under 40, please book the test for before 12pm, when testosterone levels are typically highest.

Collect your sample
Collect your sample
Attend your appointment so that the healthcare professional can collect your blood sample, then post it to the lab for free.

Review your results
Review your results
Access invaluable health data online in just a few days. Our experts will review your results and give you clear actionable advice.

Take the initial blood test
Our initial at-home, finger-prick blood test measures 4 biomarkers including your total and free testosterone levels. You can access your results via your VOY account.

Take an enhanced blood test
A comprehensive venous blood test is needed to confirm the initial result, learn more about your health, and assess whether it’s safe to start treatment.

Speak to a doctor
Your prescriber will review your blood test results and identify which TRT medication may be appropriate for you.

Start your treatment
Your medication is dispensed by our GPhC-registered pharmacy and delivered to your home.
Voy is transforming lives






Testosterone replacement therapy service, everything you need to know
Dr. Jeff Foster, Director of Men's Health

Thousands of patients have seen life-changing results






















