
DNA Cousin Test
- Fast results within 1-2 working days
- Easy at-home sample collection
- AABB, ISO/IEC 17025 & CAP-CLIA Accredited
$149 $271
Need a legally admissible test for court?
DNA Cousin Testing
Uncover the hidden bonds within your family with the Private Knowledge DNA Cousin Test. This premium DNA test calculates the statistical likelihood of whether two individuals are biological first cousins, allowing you to delve deeper into your family tree. Enjoy the convenience and privacy of at-home testing with our simple-to-use mouth swab collection kit.
Please note: The DNA Cousin Test should be used as a last resort for confirming biological relationships. If possible, we highly recommend choosing one of our other relationship testing options, as the statistical analysis used for this cousin test does not provide a very strong result. This test is only useful for determining first cousin relationships and will not indicate more distant biological connections.
How it works

Order
Order your kit online and collect your samples with the supplies inside your kit.

Send
When you’re finished collecting your samples, simply mail them to the lab for analysis.

Analysis
Testing begins as soon as your package is delivered to the laboratory.

Results
Download your results from your secure online account as soon as they’re ready.

Painless Mouth Swabs

Secure Digital Results
Frequently Asked Questions
Yes! If test participants are in different locations, we can send parts of the kit to multiple addresses. During checkout, simply enter “Please split kit” in the “Additional Notes” box and specify where each component should be sent. For example, you can write, “Send one kit to [Name, Address]” and “Send the second kit to [Name, Address].” Each kit is individually barcoded, ensuring all samples are tested together at the lab.
If you need DNA results for legal matters like court cases, child custody, support, or inheritance claims, you must order the Legal DNA Cousin Test. Legal tests follow a strict chain of custody process, requiring sample collection by a neutral third party, verified participant identification, and direct shipment to the lab. Legal DNA Cousin Testing is available in the US, Canada, and the UK.
No, the kit has no expiration date and can be stored indefinitely before collecting your sample. However, once the sample is collected, we recommend returning it to the lab within three months for optimal testing.
Your results will display two numbers (alleles) for each STR (Short Tandem Repeat) marker, representing the repeats inherited from each parent. Some markers may have identical alleles, while others may differ. These allele numbers are compared between both individuals, and a statistical analysis determines the likelihood of a biological cousin relationship based on typical match patterns.
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