HomePaternity Sibling DNA Test, Fast Results, Highest Accuracy Available with Up to 34 Genetic Markers Tested, All Lab Fees & Shipping Included

About our sibling DNA test: This DNA test will determine if two people are full siblings (brothers or sisters), half-siblings, or not siblings at all using a simple at-home kit including cheek swabs from each party. Fast results: Receive your results within 5 days of your sample being delivered to our lab via our secure online portal. Due to New York State law, this test is not available to New York residents. Maximum accuracy: We test up to 34 genetic markers and perform each test twice in our AABB, ISO 17025, CAP and CLIA accredited in-house laboratory to offer maximum accuracy. Easy sample collection: Collect your DNA sample with our easy-to-use buccal swabs, then return it in the prepaid envelope. No additional fees. Includes testing for 2 people, plus an option to include the mother for siblings who share a mother at no extra cost. In-house accredited laboratory: As a global leader in DNA testing with over 25 years of experience and more than 20 million tests performed, we do not use third-party laboratories. All test samples are processed in our accredited in-house laboratory based in the United States.