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Your test arrives in discreet packaging with clear instructions.
About this test
Measures total testosterone, SHBG, calculated free testosterone and free androgen index. It may help explore hormone-related symptoms with a clinician, but testosterone varies by time of day and an abnormal result usually needs confirmation.
At a glance
- Sample: Blood
- Collection: Follow the supplied instructions for providing your blood sample
- Estimated turnaround: 1-3 days from laboratory receipt of a usable sample
What this test measures
- Total testosterone
- The total amount of testosterone circulating in blood. A low or high result may contribute to androgen assessment; morning collection, repeat testing and related hormones may be needed before diagnosis.
- Sex hormone-binding globulin (SHBG)
- A binding protein that affects how much testosterone is available to tissues. A high or low result can reflect changes in immune proteins, hydration, liver function or protein loss and may need more specific testing.
- Free testosterone
- The portion of testosterone reported as available to tissues; the public page does not state whether it is measured or calculated. A low or high result may contribute to assessment of androgen status, but collection timing and total testosterone, SHBG and symptoms often provide essential context.
- Free androgen index (FAI)
- A calculated estimate based on total testosterone and SHBG. An in-range or out-of-range result is not a diagnosis by itself; clinicians interpret it using the laboratory range, symptoms, medical history and related tests.
How clinicians use this test
Clinicians use Total testosterone, Sex hormone-binding globulin (SHBG), Free testosterone and Free androgen index (FAI) as part of hormone assessment, often with related hormones and carefully chosen collection timing. One value rarely establishes the cause of symptoms by itself.
Is this the right test for you?
An adult exploring the stated hormone marker with a clinician or monitoring an established plan, with collection timing and medicines taken into account.
Preparation and collection
Follow the supplied kit instructions. No product-specific preparation requirements are stated publicly. Do not stop prescribed medicines unless a clinician tells you to.
Understanding your result
The most useful information is usually the pattern across Total testosterone, Sex hormone-binding globulin (SHBG), Free testosterone and Free androgen index (FAI), not one isolated flag. Related markers can support or contradict each other, and a mildly out-of-range value may reflect normal biological variation, collection conditions or temporary illness rather than disease.
Your results and next steps
Review the result with collection timing, medicines and related hormones in mind. Do not start, stop or change prescribed hormone or thyroid treatment from a single home-test result without clinician advice.
Limitations
Hormone values can vary with collection time, age, medicines and biological state. A single result does not establish the cause of symptoms.
When to get medical help
Do not wait for a home-test result if you feel seriously unwell. Call 999 for a life-threatening emergency, or use NHS 111 when you need urgent advice and are unsure what to do.
Who this test is for
- People who want a clearer view of the concern described above
- Anyone comfortable using the stated sample-collection method
- People who want doctor-reviewed results and practical next-step guidance
How it works
Collect your sample
Follow the kit guidance for the sample type shown above.
Post the same day
Post Monday–Thursday using the supplied tracked return.
Get your results
View secure, doctor-reviewed results and clear guidance online.
How to prepare
- Read the instructions before collecting your sample
- Check whether timing, fasting or medication guidance applies
- Collect and post on the same day wherever possible
Understanding your results
Clear ranges and doctor guidance
Your secure report shows the measured values, reference ranges and a doctor’s comment where appropriate.
Questions, answered
How accurate is an at-home test?
Your sample is processed by a professional UK partner laboratory using the same analytical methods used for clinician-requested testing. Sample quality depends on following the collection instructions carefully.
Are my results private?
Yes. Kits use discreet packaging and your results are delivered through a secure digital service.
Does this diagnose a condition?
No. The test checks and measures biomarkers. Results and the doctor’s comment can help you decide what to discuss with your GP.
When should I post my sample?
Collect and post on the same day, ideally Monday–Thursday, to avoid a sample waiting in the postal system over a weekend.
What happens if my sample cannot be processed?
The support team will explain the next step if the laboratory cannot process your sample. Any recollection or refund depends on the circumstances and the applicable policy.
When should I speak to my GP?
Speak to your GP if symptoms persist, worsen or concern you. Seek urgent medical help for severe or sudden symptoms.
Independent customer reviews
4.3
2,423 customer reviews on Trustpilot
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