Bespoke Panel 6

• Total testosterone (measured): bound and unbound testosterone combined.
• Oestradiol (measured): the main oestrogen.
• PSA (measured): meaningful only for people with a prostate.
• Full blood count (measured by analyser, some indices derived): typically haemoglobin, haematocrit, red cell count and indices such as MCV, white cell count with differential, and platelets. The exact parameters depend on the laboratory.

Testosterone

Testosterone is made mainly in the testes in response to luteinising hormone (LH) from the pituitary. Levels peak in the morning and vary from day to day, and illness, poor sleep and eating can lower them. A 2023 position statement from the Society for Endocrinology and the Association of Clinical Biochemistry advises morning, fasting samples when not acutely ill, with any low result confirmed by a repeat. Most testosterone is bound to SHBG and albumin, so a borderline total result can be hard to read without SHBG.

Oestradiol

In men, most oestradiol is made from testosterone by the enzyme aromatase, much of it in fat tissue. It contributes to bone health and sexual function. Male levels are far lower than in premenopausal women, and many routine methods are designed for the female range, so low results can be less precise.

Full blood count

Testosterone stimulates red cell production, which is why testosterone treatment can raise haematocrit, the proportion of blood made up of red cells. British Society for Sexual Medicine guidance recommends checking haematocrit before and during treatment and reviewing treatment if it exceeds 0.54.

PSA

PSA is an enzyme made by prostate cells. Enlargement, inflammation, infection, ejaculation and vigorous exercise can raise it. Because the prostate is androgen-sensitive, PSA is checked before and during testosterone treatment.

Results appear with the laboratory's reference ranges, which differ between laboratories and by sex.

Testosterone

For men with symptoms, the Society for Endocrinology and ACB statement sets action thresholds for morning, fasting samples, distinct from reference ranges. Two results below 8 nmol/L with symptoms make deficiency likely; 8 to 12 nmol/L needs careful clinical assessment; above 12 nmol/L makes deficiency unlikely. A low or borderline result here would usually lead to SHBG, LH, FSH and prolactin testing. A single result is never a basis for starting treatment.

If you already receive testosterone, the result depends on timing relative to your dose. Share it with your prescriber and do not change your dose based on this report.

Oestradiol and blood count

In men, oestradiol tends to be higher with more body fat, liver disease and testosterone treatment. Breast tissue enlargement should always be assessed by a GP. A raised haematocrit can reflect dehydration, smoking, sleep apnoea or testosterone treatment; low haemoglobin (anaemia) has many causes and needs following up.

PSA

Cancer Research UK estimates that around 72 to 80% of people with a raised PSA do not have prostate cancer, and around 7 to 15% with a normal PSA may still have it. If your PSA is above the laboratory's range, we will advise you to see your GP and, with your consent, Juvenology can write to your GP.

Symptoms often linked with low testosterone, such as low libido, tiredness and low mood, are not specific: poor sleep, depression, thyroid problems, anaemia and alcohol can produce the same picture. A morning testosterone result with a blood count can help a clinician decide what to check next.

For people on testosterone treatment, haematocrit and PSA are routine safety checks. If your prescriber has asked for these markers, this panel provides them in one sample. Juvenology does not prescribe testosterone or other hormone treatment. PSA testing without symptoms is a personal choice. The NHS does not offer routine PSA screening, and in 2026 the UK National Screening Committee recommended targeted screening only for men aged 45 to 61 with a BRCA2 gene change and a relevant family history.

May be suitable for

• Men with symptoms who want an initial testosterone result and blood count to discuss with a clinician
• People whose prescriber has asked for these four checks

Probably not the right choice if

• you want a definitive answer from one test: diagnosis needs repeat samples and further hormones
• you have urinary symptoms or breast swelling: see your GP
• you are seeking testosterone treatment: results do not confirm eligibility for any treatment
• you do not have a prostate: PSA will not be meaningful
• you work night shifts: UK guidance advises specialist assessment

Testosterone falls gradually with age on average, but many older men stay within the reference range. Obesity, type 2 diabetes and chronic illness are strongly associated with lower testosterone; these associations do not show that low testosterone causes those conditions. Testosterone treatment is not established as a way of slowing ageing in men with normal levels. PSA rises naturally as the prostate enlarges, so older men's results need careful interpretation.

• Before 11am, fasting: water only from the night before. Eating can temporarily lower testosterone.
• Sleep and illness: test after a normal night's sleep; rebook if unwell.
• PSA: for 48 hours, avoid ejaculation, anal sex, breathless exercise and cycling (NHS advice). Wait 4 to 6 weeks after a urinary infection has cleared.
• Hydration: drink normally; dehydration raises haematocrit.
• Medicines: follow your prescriber's advice on test timing if you take testosterone. Finasteride and dutasteride lower PSA. High-dose biotin can interfere with hormone immunoassays; mention it when booking.

Choose how your sample is taken when you book. We confirm the collection option, any collection fee and the expected turnaround time before you book.

• Juvenology Clinic, Maidstone (82 King Street, Maidstone ME14 1BH): Available.
• Partner collection location, including London: Available on request. We confirm availability for your postcode before you book.
• Postal home finger-prick kit: Ask before ordering. We offer a home kit only where the laboratory confirms this test is suitable for a finger-prick sample.

Sample: Venous blood: whole blood (EDTA) for the full blood count and serum for hormones and PSA (tube types confirmed by the laboratory)

Collection notes: Morning sample before 11am, fasting, when not acutely ill (testosterone). Avoid ejaculation, vigorous exercise and cycling for 48 hours before (PSA). Finger-prick collection only if the laboratory confirms all four tests, including the full blood count, are valid after postal transit.

The price of this test covers laboratory analysis and the laboratory's results report. The report lists each result beside the laboratory's reference range.

Beyond the blood test: optional support, priced separately

• Personalised written interpretation report: £50
• General consultation: £50
• Results consultation (results discussion and follow-up advice): £100
• Personalised programme: from £150, after we assess whether a programme suits you

Consultations are with Marina, an NMC-registered nurse with an Executive MSc in Longevity from the Geneva College of Longevity Science. She explains what your results show and how they relate to lifestyle. No prescription service is offered with these tests.

If a result suggests you need medical follow-up, we will recommend that you see your GP and, with your consent, can provide a letter to take with you. A blood test cannot rule out every condition. If you have symptoms, speak to your GP or NHS 111, and call 999 in an emergency.

Can one result show whether my testosterone is low?

No. UK guidance recommends confirming a low result with a second morning, fasting sample, usually with SHBG, LH, FSH and prolactin.

Why aren't SHBG and free testosterone included?

This is a compact first look. Bespoke Panel 7 adds SHBG, free testosterone, LH, FSH and prolactin, with a broader health screen.

Can I use this panel to monitor testosterone treatment from another provider?

Yes, if your prescriber agrees these markers meet their monitoring plan. Send them your report and do not adjust treatment on the basis of this report alone.

Can women take this panel?

Testosterone, oestradiol and a blood count are relevant to women, but PSA is not, and female hormones usually need cycle timing. A female hormone panel is likely to be more useful.

Is interpretation included?

The price covers analysis and the laboratory report. You can add a written interpretation report (£50) or a results discussion consultation (£100).

Is a home kit available?

Only if the laboratory confirms every test, including the blood count, is reliable after posting. Please ask when booking; a clinic sample is the most reliable option.

1. Jayasena CN, de Silva NL, O'Reilly MW, et al. Standardising the biochemical confirmation of adult male hypogonadism: a joint position statement by the Society for Endocrinology and Association of Clinical Biochemistry and Laboratory Medicine. Annals of Clinical Biochemistry, 2023. https://pmc.ncbi.nlm.nih.gov/articles/PMC10357891
2. Hackett G, Kirby M, Edwards D, et al. British Society for Sexual Medicine guidelines on adult testosterone deficiency, with statements for UK practice. Journal of Sexual Medicine, 2017. https://doi.org/10.1016/j.jsxm.2017.10.067
3. PSA test. NHS, 2024. https://www.nhs.uk/tests-and-treatments/psa-test/
4. PSA testing in primary care. Cancer Research UK (for health professionals), 2026. https://www.cancerresearchuk.org/health-professional/diagnosis/primary-care/primary-care-investigations/psa-testing
5. UK NSC recommends prostate cancer screening for men with a BRCA2 gene change and family history of cancer. Cancer Research UK, 2026. https://news.cancerresearchuk.org/2026/05/28/uk-nsc-recommends-prostate-cancer-screening-for-men-with-a-brca2-gene-change-and-family-history-of-cancer/