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Sibling DNA Test

from $199.00

Home Sibling DNA Test includes:

  • Easy to follow instructions

  • Sterile buccal collection swabs per person

  • Sample envelopes for each person involved

  • Consent form

  • Prepaid return label to our laboratory. (USA Only)

Select from test options below:

Number of Siblings:
Will a Known Parent be Included in the Test? (Recommended):
Send a Kit to a Second Address?:
Test For Full or Half Siblingship?:

Home Sibling DNA Test includes:

  • Easy to follow instructions

  • Sterile buccal collection swabs per person

  • Sample envelopes for each person involved

  • Consent form

  • Prepaid return label to our laboratory. (USA Only)

Select from test options below:

Sibling DNA Test

The Sibling DNA Test helps determine whether two individuals share a biological sibling relationship when a parent is unavailable or not participating in testing. By analyzing shared genetic markers, this test provides reliable insight into whether the tested individuals are full siblings, half siblings, or unrelated.

This at-home DNA test uses simple, non-invasive cheek swab collection, making it easy to complete while maintaining privacy and accuracy.

When Should You Use a Sibling DNA Test?

This test is commonly used when:

  • Confirmation of a sibling relationship is needed

  • One or both parents are unavailable for testing

  • Informational DNA results are sufficient

  • A fast, private at-home testing option is preferred

Who Can Be Tested

  • Two individuals believed to be siblings

  • Testing additional siblings or a parent may increase accuracy and reduce the likelihood of inconclusive results

Accurate Sibling DNA Analysis

DNA samples are analyzed at an accredited laboratory using advanced genetic comparison techniques. The test examines multiple genetic markers to calculate the statistical probability of a sibling relationship, helping determine whether the individuals are full siblings, half siblings, or not biologically related.

Turnaround Time

Results are typically available within 2-3 business days after the laboratory receives all samples.

Simple and Confidential Testing

Sample collection is quick and painless using cheek swabs. Testing kits are shipped in plain, unmarked packaging, and results are delivered securely to protect your privacy.

Important Information

  • This test is intended for informational purposes only and is not valid for legal or court use

  • Including additional tested individuals may improve result accuracy

  • Split kit shipping options may be available if participants are in different locations