Grandparentage DNA Testing
ReliaLab Test provides grandparentage DNA testing to help establish a biological relationship between a grandparent and grandchild, most often used when the child's parent is unavailable for direct paternity or maternity testing. Testing is available nationwide through a network of more than 15,000 collection clinics, with local service from ReliaLab's team based in Nashville, Tennessee.
How Grandparentage Testing Works
Cheek swab samples are collected from the child and the grandparent. Testing both paternal or maternal grandparents together, when possible, can improve the accuracy and confidence of the result.
Which Type of Grandparentage Test Do You Need?
Legal Grandparentage Test
Every participant's identity is verified with photo ID, and collection is witnessed by a neutral, trained collector at a collection clinic or by a mobile collector. Choose this when the result may be reviewed by a court or used for legal purposes.
Order a legal test → Home KitInformational (Home) Grandparentage Test
A kit is mailed to your home. Participants self-collect a cheek swab and mail it back to the lab. There is no witnessed collection, so this is for personal knowledge only.
Order a home test →How Grandparentage Testing Works
1
Order Online
Complete the order form below and choose either a legal or informational DNA test.
2
Prepare for Collection
Legal-test customers receive a Test Authorization Order and collection location. Informational-test customers receive a home collection kit.
3
Sample Collection
Legal samples are collected by a trained collector with identity verification. Home-test participants collect their own cheek swabs using the mailed kit.
4
Receive Results
Results are emailed securely, typically within 1 to 3 business days.
Order a Grandparentage DNA Test
Choose a legal test for court-admissible results or an informational home test for personal knowledge.
Grandparentage Testing FAQ
It's most often used when the child's parent is unavailable, deceased, or unwilling to test, and a grandparent can stand in for the comparison.
Testing the alleged relative's parents, the child's paternal or maternal grandparents, provides the most relevant comparison. Testing both grandparents on that side together can improve the accuracy and confidence of the result.
Grandparentage testing can provide strong evidence of a biological relationship, though it is generally less conclusive than a direct parent-child DNA test because the genetic relationship is more distant.
A legal test has a witnessed collection with photo ID verification and a documented chain of custody, making it admissible in court. A home test is self-collected and is for personal knowledge only.
Depending on the test type, results are typically emailed within 1 to 3 business days.
No. While ReliaLab Test is based in Nashville, Tennessee, grandparentage testing is available nationwide through its 15,000+ collection clinic network or a mailed home kit.
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