Sibling DNA Relationship Testing

Sibling DNA Testing is a DNA test process that is performed to determine if two or more people share one or both parents. For example to determine if they are full or half siblings. Sibling tests are typically used as an indirect method to prove family relationships when the alleged father is not able to perform a paternity test. However, in rare cases, sibling tests are used to determine if 2 people share the same mother.

Test Me DNA offers Sibling DNA Testing nationwide. One low price of $179 includes everything required for Sibling DNA test results.

With all relationship testing, the mother of the child is always urged to test. This allows less of a chance to receive inconclusive results. If the biological mother is not available, the test can still be performed. Additional undisputed siblings can also be added to provide a stronger test result. To discuss the best options, give us a call to help you decide what is best.

Order Sibling Test

After deciding on a test, we will either send out a Home Sibling DNA Test Kit or schedule an appointment for Sibling DNA Testing at any of our 1000+ Testing Centers for DNA collection.

Collect Samples

DNA collection is painless and easy to perform. DNA collections are performed with non-invasive buccal swabs. The swabs are brushed lightly on the inside of each individual’s cheeks for around 10 seconds.

Get DNA Results

Results typically complete within 3-8 days after the laboratory receives all testing kits. Paternity test results are then provided over the phone and email. Mailed copies can be sent upon request.

When two siblings share the same mother and want to learn if they share the same biological father a full sibling DNA test would be performed. If the test confirms the biological father of the siblings they would be full siblings.
The full sibling test can only be used if two siblings share the same mother.

When two siblings do not share the same biological mother but want to learn if they share the same biological father.

The half sibling test can be performed with or without the mothers involved. Adding a mother to testing is always encouraged for more conclusive and accurate results.

Test Me DNA can provide you with Court Admissible or Peace of Mind results for siblingship testing. Whether your specific situation requires you to choose the Legal Documentation or you are just doing this test for personal knowledge, rest assured that our AABB accredited lab will process all siblingship tests exactly the same. There is absolutely no change in the accuracy or precision of the final results. The only difference comes in the Notarized results, along with a Chain of Custody that is provided with the legal siblingship test.

• Discreet shipping, free shipping both ways
• Easy to use kit with detailed instructions
• Fast results: 3-8 business days after returning the kit
• Order online or by phone
• Results are private and confidential
• One low price includes kit + results
• 99.9% accurate results to ease your mind

• Same Day Appointments in most areas
• Painless DNA collection
• Fast results: 3-8 business days
• Order by phone
• Results are private and confidential
• One low price includes testing & legal DNA results
• 99.9% accurate results that will hold up in court

For most sibling tests, the samples are collected using sterile buccal swabs. These sterile cotton tip swabs are rubbed on the inside of the cheek collecting the epithelial cells. Buccal swab collections are completely painless and can be used on adults, children as well as babies. Due to the fact that the DNA found in our cheek cells is the same DNA found in all of our cells in our body, the results from this test would be exactly the same as if performing the test using a blood sample or other “special” samples.

Legal sibling tests must be collected at one of our many collection sites. This allows the collection to be taken by a professional neutral third party. They will also take a thumbprint and a photo at the time of collection, providing proof of who was collected.