Siblingship DNA Test

Determine the statistical probability that two individuals are related as siblings. Ideal when parents are unavailable, Siblingship DNA Testing is a viable alternative to direct parental DNA validation.

Order Now - $299

Why Choose Our Siblingship Test?

Alternative to Paternity

In instances where the alleged parents are unavailable for DNA testing, siblingship testing provides another option.

Determine Relationships

This test helps determine whether individuals share one or both biological parents.

Statistical Probability

Results will indicate if the test participants are more or less likely to be related as siblings based on the genetic material exhibited by each person.

Enhanced Accuracy

Adding the biological mother's DNA can help improve accuracy and make results more definitive.

Simple 3-Step Process

1

Sample Collected

For most tests, a swab is taken from all participants.

2

Advanced Lab Analysis

Collected specimens are shipped to our accredited lab for testing and comparison.

3

Receive Your Results

A specialized report will be provided indicating the strength of any relationship that may exist.

Here's What You'll Get:

  • Statistical report showing the likelihood that the tested parties are related.
  • Specialized collection kit and return shipping to the lab.
  • The fastest results in the industry!

Siblingship DNA Test

Determine the likelihood of a sibling relationship.

$299.00
  • Base Test (2 alleged siblings and 1 mother) Included
  • Additional Person(s) +$125.00
  • Additional Kit(s) +$45.00
  • Court Admissible Upgrade +$200.00
  • Rush Test (same business day) +$750.00
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Siblingship DNA Testing FAQs

What is a siblingship DNA test?

A siblingship DNA test is used to determine the statistical likelihood that two individuals share one or both biological parents. This test is most commonly used to establish paternity or maternity when the alleged parent is deceased or otherwise unavailable for a standard DNA test.

Can this test determine if we are full or half-siblings?

Yes. The laboratory analysis will compare the genetic markers of both participants to calculate a siblingship index, which indicates the probability that you share both parents (full siblings), one parent (half siblings), or neither parent (unrelated).

Do the parents need to participate in the test?

While the parents do not have to participate, we highly recommend including a DNA sample from any known shared parent (usually the mother). Having a known parent's DNA allows the lab to eliminate those specific genetic markers, drastically increasing the accuracy of the siblingship index.

Are siblingship test results court-admissible?

Yes, as long as you choose our Legal Siblingship Testing option. Legal tests follow a strict chain of custody, require government-issued ID verification, and are processed by an AABB-accredited lab, making them fully admissible for child support, probate, and immigration cases.