Grandparent DNA testing
Grandparent DNA tests can be used to establish a biological relationship between an individual and one or more of their alleged grandparents.
One of the main reasons why a grandparent DNA test is performed is when a child’s alleged father is unavailable for paternity testing and the child’s grandparents want to know whether the child is truly related to them.
In a grandparent test, a DNA profile is produced for each individual taking part in the test. Since a child inherits half of his or her genetic profile from each biological parent, when one or more of a child’s parents is unavailable for testing, we can look to the grandparents to determine if they contributed DNA to the child’s genetic profile.
DNA grandparent testing is not as conclusive as paternity or maternity analysis and should only be used when it is not possible to perform these other types of testing.
People who are related usually share more genetic markers than people who are unrelated and an inconclusive DNA grandparent test result could be due to a low number of matching DNA markers between the tested individuals. Alternatively, the markers that are shared between the tested parties could be extremely common within the relevant population.
100% confidential accredited service
What is the difference between the standard and the enhanced test?
Our standard grandparent test is already industry-leading, as it analyses 25 DNA markers (the industry standard only analyses 16-21 markers).
What makes AlphaBiolabs unique is that we can also analyse up to 45 DNA markers. This allows more genetic material to be analysed, which strengthens the result and provides additional reassurance.
This is ideal for customers who want the most powerful DNA test available.
It is also particularly useful in tests of a more complex nature, such as a grandparent test, where the chance of obtaining a conclusive result will always be lower than the more straightforward paternity or maternity tests. This is because the DNA hasn’t been directly inherited. The enhanced test will increase the chance of obtaining a conclusive result.
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. We also offer the fastest turnaround times in the UK for DNA testing.
The Grandparent 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.
Our grandparent test looks at up to 45 DNA markers (loci) – double the industry standard for DNA testing – examining the child’s DNA and the alleged grandparent’s DNA to identify matching DNA markers.
Your test kit will be sent directly to your preferred address in discreet, plain packaging, for full confidentiality.
Get the answers you need with the UK’s most popular home Grandparent DNA Test from AlphaBiolabs.
What makes the AlphaBiolabs Grandparent 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:
- We analyse up to 45 DNA markers (loci) – twice as many as our competitors
- 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; the alleged grandparent, the child and the biological mother (if available)
- 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.
The UK’s fastest Grandparent DNA Test
How do same day and next day grandparent DNA 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 grandparent DNA test results, and when you can expect to receive your results.
Over ONE MILLION genetic tests performed since 2004
What’s in our Grandparent DNA Test kit?
Our Grandparent DNA Test kit contains enough collection swabs to test one alleged grandparent, one grandchild and the biological mother, if available.
With grandparent testing it is beneficial to also provide a sample from the mother, if possible, to reduce the possibility of an inconclusive result. However, this is not essential, and the test can still be performed without the mother’s sample.
Enclosed in our Grandparent DNA Test kit:
- Peace of mind DNA test instruction sheet
- A self-addressed envelope to send your DNA test samples back to us
- Three DNA sample collection swab packages containing one swab in each package
- Individual DNA test sample envelopes for the alleged grandparent, child and mother (if available)
The cost of the test includes all fees for laboratory testing and analysis.
If you want to test more than three people with the same test, you can add extra people 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.
Read reviews from real customers
Found AlphaBiolabs to be extremely efficient and helpful. The test kit arrived promptly and the directions were clear and easy to follow. When I sent the kit back for testing, receipt of same was acknowledged by email and I received the test result report the following day. Excellent service and highly recommended.
Grandparent DNA Test Customer
on DNA Testing Choice
I haven’t seen my father since I was a child but recently had doubts he was actually my biological father. My grandparents have always been there for me and agreed to have a DNA test to settle all of these doubts once and for all. The thought of having a test was nerve wracking but AlphaBiolabs performed a next day test with no hassle at all. The results were positive meaning that I can move on with my life. Thank you!
Grandparent DNA Test Customer
on DNA Testing Choice
After years of uncertainty this test finally brought our family together. I cannot say how grateful both I and my husband are to AlphaBiolabs.
Grandparent DNA Test Customer
on DNA Testing Choice



