How we do our DNA testing
We utilise the most up-to-date DNA testing technology to ensure the reliability and accuracy of our genetic testing. For your peace of mind, we use the latest 27 marker technology.
Our Y chromosome test (also referred to as a Y-DNA test) kit includes mouth swabs to be rubbed gently and painlessly on the inside of the cheek to collect cheek cell DNA, with no needles required.
Your test kit will be sent directly to your preferred address in discreet, plain packaging, for full confidentiality.
What is Y chromosome testing?
A Y chromosome test (Y-STR test), also known as a Y-DNA test, is used in cases where alleged male relatives wish to confirm they share a common paternal line.
All male children inherit their Y chromosome from their father; these children will in turn pass the Y chromosome inherited from their father to their children when they become fathers.
This means it is possible to analyse and compare the DNA samples of test participants to determine a biological relationship through the paternal family line.
If the males in question are related, their Y chromosome will be identical.
The Y chromosome is only found in males. Females do not have Y chromosomes. This means that although females cannot directly carry out a Y chromosome test, they can ask a male, paternal biological relative to take the test on their behalf.
What makes the AlphaBiolabs Y Chromosome DNA Test the best available?
AlphaBiolabs is the UK’s No.1 DNA testing laboratory, with over 20 years of experience providing at-home DNA testing for peace of mind.
We pioneered the fastest DNA results worldwide, with next-day* results available as standard for our peace of mind DNA tests – an achievement that saw us awarded the Queen’s Award for Enterprise.
We even offer same-day results for +£70.*
Additionally:
- Find out whether male relatives share a common paternal line (identical Y chromosome)
- Up to 27 DNA markers (loci) analysed
- We’re UKAS ISO 17025-accredited (No. 2773), ensuring our processes meet the highest international standards for accuracy and reliability
- Our easy-to-use home test kit allows you to collect your own DNA samples quickly in the privacy of your own home
- Only a simple cheek swab required from each person taking part in the test (child and alleged male relative)
- All tests are performed at our UK laboratory, so your samples won’t be sent abroad
- We’re rated ‘Excellent’ on Trustpilot, based on reviews from real customers
- We prioritise your privacy and guarantee 100% confidentiality throughout the testing process. This includes sending your test kit in discreet, plain packaging, and delivering your password-protected results via secure email
- Accurate results, based on the samples we receive into our laboratory
*Business days from when your samples arrive at our laboratory, before 10am.
Just £199 for confidential next day results or upgrade to same day results for an extra £70
When would Y chromosome testing be needed?
A Y chromosome test can help confirm if individuals share a common paternal lineage.
This test will compare the Y chromosome profiles of the tested males. A full match between profiles confirms a shared paternal line. If the males have different Y chromosome profiles then they do not share the same paternal line.
Other uses of the Y chromosome test include male cousins who can use this test to see if their fathers were brothers or to check if they shared a common grandfather or ancestor.
If you require a Y chromosome test for legal reasons, such as in immigration cases where proof of a biological relationship is required, you will need a legal DNA test. For further advice call our expert team on 0333 600 1300.
If you are looking for a Y chromosome ancestry test please click here.
How do same day and next day Y-chromosome results work?
Once you have received your DNA kit and taken your cheek swab samples, you will need to post the samples back to our laboratory using the self-addressed envelope provided in the kit.
Please see below for more information on when we will need to receive your samples by for same day and next day Y-chromosome test results, and when you can expect to receive your results.
Over ONE MILLION genetic tests performed since 2004
Enclosed in our Y Chromosome Test kit:
- Peace of mind DNA test instruction sheet
- A self-addressed envelope to send your DNA test samples back to us
- Two DNA sample collection swab packages containing one swab in each package
- Individual DNA test sample envelopes for the individual males
The cost of the test includes all fees for laboratory testing and analysis.
If you want to test more than two males with the same test, you can add extra males to the package when ordering and more swabs will be provided in the DNA test kit (additional charges apply).
Your test kit will be sent directly to your preferred address in discreet, plain packaging, for full confidentiality.



