Determine whether two individuals share one biological parent with our half sibling DNA test kit. This test compares DNA profiles to calculate the likelihood that two people are half siblings, sharing either a biological father or mother, versus being unrelated.
For the highest accuracy possible, the mother must test.
2-3 Days
Results
24+
Markers Tested
Participants Included
2Need faster results? Need to add more people to your test?
Lab Processing Speed
Processing time begins once samples arrive at our lab. Choose Express Shipping at checkout for fastest delivery.
Results in 2-3 business days.
Prepaid Return Shipping | Ships Same Day (Order by 2 PM EST)
Determine whether two individuals share one biological parent with our half sibling DNA test kit. This test compares DNA profiles to calculate the likelihood that two people are half siblings, sharing either a biological father or mother, versus being unrelated.
For the highest accuracy possible, the mother must test.
Each participant provides a painless cheek swab sample at home. Our state-of-the-art laboratory performs advanced sibship analysis comparing the genetic profiles to calculate a half-sibship index. This statistical analysis determines the likelihood that the tested individuals share one biological parent. Results are delivered within 2-3 business days through our secure online portal.
Important: This is a peace-of-mind (informational) test. If you need court-admissible results, please see our Legal Half Sibling DNA Test Kit.
A half sibling DNA test determines whether two people share one biological parent. This is common in situations where individuals suspect they share the same father but have different mothers, or vice versa.
While not required, including the mother's sample is strongly recommended for half sibling testing. The mother's DNA helps the laboratory isolate the paternal genetic contribution, significantly improving the accuracy and clarity of results.
Related tests: Full Sibling DNA Test | Grandparent DNA Test | Aunt/Uncle DNA Test | Paternity Test
Learn more: How DNA Testing Works
Place your order online and receive your DNA collection kit within 3-5 business days via standard shipping, or 2-3 days with express shipping.
Follow the simple instructions to collect painless cheek swab samples from each participant. The process takes under 60 seconds per person.
Use the included pre-paid return shipping label to send your samples to our state-of-the-art laboratory.
Access your confidential results through our secure online portal. Results are typically available within 2-3 business days.
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US Diagnostics Center
333 Conover Dr., STE C
Franklin, Ohio 45005
Phone: (937) 790-9991
Email: support@usdctest.com
