Order your kit
Your test arrives in discreet packaging with clear instructions.
About this test
Screens blood for hepatitis B surface antigen (HBsAg), which can be present during hepatitis B infection. A reactive result needs confirmatory testing and clinical assessment; this test does not show immunity.
At a glance
- Sample: Blood
- Collection: Self-collected sample using the supplied kit
- Estimated turnaround: 1 day from laboratory receipt of a usable sample
What this test measures
- Hepatitis B surface antigen (HBsAg)
- A viral surface marker that can be present during hepatitis B infection. A reactive result can indicate current hepatitis B infection and requires confirmatory testing and clinical follow-up.
How clinicians use this test
Clinicians use Hepatitis B surface antigen (HBsAg) to assess infection, previous exposure or immunity depending on the specific marker. Screening results may require confirmation and must be interpreted against exposure timing and vaccination history.
Is this the right test for you?
An adult seeking the stated hepatitis marker after considering exposure timing, vaccination history and the difference between screening for infection and checking immunity.
Preparation and collection
Return the sample on the same day it is collected. Do not post over weekends or bank holidays.
Understanding your result
Results are usually reported as detected, not detected, reactive or non-reactive rather than simply “normal”. A reactive or detected result may need confirmation or treatment; a non-detected result does not exclude exposure during the window period or infection at a site that was not sampled.
Your results and next steps
A reactive screening result requires confirmatory testing and clinical follow-up. Do not make treatment decisions from the screening result alone.
Limitations
Testing during a window period can miss infection. A screening result may not distinguish current infection, previous exposure and immunity; use the specific result pathway stated above.
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
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