At-Home Sibling DNA Test | Multi-Location | 1 Order, 2 Kits Shipped
Assess whether two or more people are full siblings, half siblings or unrelated as siblings. Collect cheek-swab samples at home using kits shipped to two U.S. addresses.
The My Forever DNA® Multi-Location At-Home Sibling DNA Test Kit provides reliable answers without a clinic visit. One order includes two complete collection kits shipped to separate addresses, making testing simple for participants who live apart.
This test can help determine whether two people are full siblings who share both biological parents, half siblings who share one biological parent, or are not biologically related as siblings. It is ideal for adults, adoptees, separated family members, and anyone seeking answers.
Two collection kits are sent to the two shipping addresses. Each participant collects cheek-swab samples at home and returns them to the laboratory using the included return envelopes. The DNA profiles are compared to evaluate the evidence for these possible relationships:
Parents are not required. However, including the biological mother of one or both tested siblings whenever possible can strengthen the comparison and reduce the chance of an inconclusive result. If the siblings have different mothers, a sample from either known biological mother may still help.
Full siblings generally share about 50% of their DNA, while half siblings share about 25%. The laboratory examines shared genetic-marker patterns and calculates the likelihood of the claimed relationship. Because sibling testing is indirect, some cases may produce an inconclusive result. This does not mean the samples were collected incorrectly or that a laboratory error occurred.
If additional DNA is needed, testing a biological parent, grandparent, or aunt or uncle may strengthen the analysis. A half-sibling result does not identify which biological parent is shared.
Both participants are collecting at one address?
Choose our Standard At-Home Sibling DNA Test Kit.
Do not need a physical kit mailed?
Choose our DIY Digital At-Home Sibling DNA Test with emailed instructions and forms.
Need help before ordering?
Contact a My Forever DNA® Specialist for private guidance.
This at-home sibling DNA test is intended for informational and peace-of-mind purposes only. It is not intended for medical diagnosis, treatment, or use in court. Legal proceedings require a legal chain-of-custody DNA test with verified third-party collection. Results are based on statistical probability and shared genetic markers.
Get confidential answers without requiring both participants to be in the same place. My Forever DNA® has helped families seek clarity through accredited DNA testing since 2015.