Just curious?
At-Home Kit
At Home Blood Testing Kit
£45
The easiest first step: check your testosterone levels.
What's checked
- Total testosterone
- Free testosterone & SHBG
- Albumin & free androgen index
How you give your sample
- Home kit
Blood tests
Testosterone Blood Test UK
Know your numbers. Know yourself.
Your body gives you signals. Blood tests show you the data behind them.
Whether you choose a simple at home kit or a more enhanced hormone screen, testing gives you a clear clinical snapshot of what is happening beneath the surface. Low energy, brain fog, reduced sex drive, or concerns about fertility all deserve proper answers. Start with facts, understand your numbers, and make decisions based on evidence not guesswork.
Compare tests
Find the right blood test for you
Every test is reviewed by a UK GMC-registered doctor. Pick the one that matches where you are today.
Recommended for best results
Want the full picture?
Enhanced
Enhanced Testosterone Blood Test
from£110
The full hormonal picture we'd want before considering TRT.
What's checked
- Total & free testosterone
- SHBG, LH, FSH & oestrogen
- Thyroid, cortisol, prolactin & PSA
- Liver, kidney & lipid profile
- Vitamins, ferritin & full blood count
How you give your sample
- Home kit
- Clinic
- Nurse visit
Want to go above and beyond?
Ultimate
Ultimate Blood Test
from£299
Above and beyond: hormones plus heart, metabolism and recovery.
What's checked
- Advanced hormone & TRT markers
- Heart & inflammation (Apo B, Lp(a), hs‑CRP)
- Thyroid, liver, kidney & metabolism
- HbA1c, iron studies & vitamins
- Full blood count
How you give your sample
- Home kit
- Clinic
- Nurse visit
Enhanced · Home kit£110
Order nowWhy we ask for two blood tests
One reading isn't enough to get it right.
We know a second test can feel like an extra hurdle when you just want answers. It's there to protect you.
We require two blood tests to confirm consistently low testosterone levels, as these can naturally fluctuate due to factors such as sleep, stress and illness.
Having two sets of results also allows the doctor to cross-reference key biomarkers, identify any abnormalities and assess your overall health to ensure TRT is a safe and appropriate treatment option.
This is in line with clinical guidelines and helps ensure treatment is prescribed safely and responsibly.
- 1First testA quick check of your testosterone levels.
- 2Confirmatory testA second sample on a different day, plus safety markers.
- 3Doctor consultationTreatment is only discussed once both agree.
Rather have a professional take your sample? Find your nearest partner clinic for a venous draw, or read how low testosterone is diagnosed in the UK.
Ask the teamWhat's measured
What a testosterone blood test actually tells you
A testosterone blood test measures the total testosterone circulating in your blood, but on its own that number tells you very little. Most of it is bound to sex hormone binding globulin (SHBG) and is biologically unavailable, so a man with high SHBG can have a total testosterone of 14 nmol/L and a free testosterone that is frankly deficient. A proper panel measures SHBG and albumin too, so free testosterone can be calculated, and adds LH, FSH and prolactin to show whether low levels start in the testes or the brain.
Timing matters, but less rigidly than you may have been told. Testosterone is highest in the morning, especially in younger men, so we suggest testing before 12pm if you're under 40 and before 2pm if you're 40 or over. You don't need to fast. UK guidelines ask for early-morning fasting samples, but a low reading in a man who is exhausted by mid-afternoon still matters, and our doctors read the time of your sample alongside the result. A low result is always confirmed with a second test.
Every Arc TRT test is reviewed by a UK GMC-registered doctor who reads your results against your symptoms and the BSSM thresholds, not just the lab range. The wider panels also check thyroid, full blood count, PSA, HbA1c and lipids, so conditions that mimic low testosterone are found rather than missed.
FAQs
Your TRT questions, answered.
Which blood test should I choose?
If you just want to know your testosterone levels, start with the £45 at-home kit. The Enhanced test (from £110) gives the full hormonal picture we'd want before considering TRT. The Ultimate test (from £299) adds cardiovascular, metabolic and wider health markers. Unsure? Ask the team and we'll point you to the right one.
How does the at-home finger-prick kit work?
The kit arrives by post with everything you need. Collecting the sample takes a few minutes, then you return it in the prepaid envelope. Results are reviewed by a clinician, not just emailed as raw numbers.
When should I take my sample?
Earlier in the day if you can: before 12pm if you're under 40, or before 2pm if you're 40 or over. You don't need to fast. UK guidelines prefer early-morning samples, but a low result later in the day still matters, and your doctor reads the time of the sample alongside the number. A low result is confirmed with a second test before any diagnosis. Your kit includes full instructions.
What if I'd rather not do a finger-prick test?
The Enhanced and Ultimate tests can be done as a clinic blood draw or a nurse home visit instead of an at-home kit. Choose the option that suits you when ordering.
How long do results take?
Days, not weeks. Once the lab processes your sample, your results are reviewed by one of our clinicians and explained in the context of your symptoms.
What happens after my results come back?
A UK GMC-registered doctor reviews your results alongside your symptoms. If low testosterone is found and treatment is appropriate, we'll discuss your options. If it isn't, we'll tell you honestly. Taking a test carries no obligation to start treatment.
What does a testosterone blood test measure?
At minimum, your total testosterone. Our at-home kit also measures SHBG and albumin so free testosterone can be calculated, which is the fraction that actually tracks your symptoms. The Enhanced and Ultimate tests add LH, FSH and prolactin to show why levels are low, plus oestradiol, thyroid, full blood count, PSA and metabolic markers to rule out conditions that mimic low testosterone and set your safety baselines.
Do I need to fast before a testosterone blood test?
No. UK guidelines ask for fasting samples taken before 11am, and that's what your GP will usually request. We don't make fasting a requirement. Testosterone is highest in the morning, so we suggest testing before 12pm if you're under 40 and before 2pm if you're 40 or over, and your doctor reads the time of the sample alongside the result. A low result is confirmed with a second test before any diagnosis.
What is a normal testosterone level?
Lab ranges typically run from about 8 to 30 nmol/L and aren't adjusted for age, so a symptomatic man at 9 nmol/L can be flagged as normal. Clinically, UK BSSM guidance treats a total testosterone below 12 nmol/L with symptoms as the threshold for considering treatment, and a calculated free testosterone below 0.225 nmol/L supports treatment even when total looks acceptable, with a trial possible between about 0.225 and 0.347 nmol/L if symptoms fit. Our doctors read your result against those thresholds, not just the lab range.
Testosterone matters.
Let's treat it properly.
Medical care that puts you back in control, with proper testing, expert oversight and treatment tailored to you.
