A sibling DNA test will determine a statistical probability of whether test participants are full or half siblings.  A full-sibling comparison assumes there is one parent known to be in common and tests whether both parents are shared.  A half-sibling comparison assumes no parents are known to be shared, and tests to see if one parent is in common.

At only $245 our legal sibling test includes DNA analysis for 2 siblings with sample collection at your doctor’s office. For $355, we will arrange professional collection for 2 siblings at one of our over 3,500 network clinic locations.

Most Accurate: We highly recommend adding the mother(s) to the test to get the most conclusive result possible.  If not possible, choosing the option for testing additional markers as needed will make sure you get the most conclusive result based on the DNA available.

Collection: Only a medical professional from a doctor office or clinic may be the witness for your legal DNA test. If using your doctor, enter their office address in the shipping section.

If you prefer collection at one of our clinic locations, we will contact you within one business day to arrange an appointment for your collection.

2 Addresses: If participants are in different cities or states, choose the option for additional shipping address or separate appointments and enter additional collection area or mailing information.

Results: Once testing completes, hard copy results are mailed within one. If you purchase email results, the result is emailed within 24 hours of testing completion.