Confirm a sibling relationship
Explore whether participants share one or both biological parents.
DNA Testing
Siblingship DNA Testing
Explore whether two or more people are full siblings, half siblings, or unrelated.
Informational $349 · Legal $449 · Confidential
Testing options
Choose your test
Siblingship
Who is tested: Two or more possible siblings provide cheek swabs. A known mother or father may participate when available. We will review the family structure before scheduling.
Standard results: 3 to 5 business days. Expedited results (+$100): 1 to 2 business days. These times are for regular DNA tests, not Immigration DNA. Choose expedited in your cart.
Understanding your options
What siblingship dna testing is
Siblingship testing compares DNA patterns to evaluate a possible full- or half-sibling relationship.
Including a known parent, when available, may help strengthen the comparison.
Reasons for testing
Why people choose this test
Missing-parent cases
Seek answers when a parent cannot be tested.
Family reunification
Support relatives reconnecting after time apart.
Legal documentation
Request chain-of-custody collection for an official matter.
Participants and samples
Who needs to be tested
Two or more possible siblings provide cheek swabs.
A known mother or father may participate when available.
We will review the family structure before scheduling.
What to expect
How it works
- 1
Reach out
Tell us what you hope to learn and whether the results are for personal or official use.
- 2
Schedule collection
We confirm the right test, participants, documents, and a convenient appointment time.
- 3
Collection appointment
Samples are collected carefully and identities are documented when chain of custody is required.
- 4
Laboratory analysis
The collected samples are securely prepared for DNA analysis.
- 5
Confidential results
Results are delivered privately, and our team can answer process-related questions.
Appointment preparation
What to bring
Do not eat, drink, smoke, or chew gum 1 hour before your appointment.
For a legal case, each adult should bring a valid government-issued photo ID.
Bring the child's birth certificate or identification when applicable, with a parent or legal guardian present for minors.
Informational testing generally requires less documentation than legal chain-of-custody testing.
Bring any court, agency, or case paperwork connected with the request.
We'll confirm exactly what you need when we schedule.
FAQ
Common questions about siblingship
It is DNA testing designed to help answer a specific siblingship dna testing question through comparison of the appropriate participants or samples.
The possible siblings are tested, and a known parent may participate when available.
Most standard collections use a painless cheek swab.
Many cases offer both. Legal or court-admissible testing requires identity verification and documented chain of custody.
Standard results: 3 to 5 business days. Expedited results (+$100): 1 to 2 business days. These times are for regular DNA tests, not Immigration DNA. Timing starts once all required samples and information are received.
Yes. Case information and results are handled privately and shared with authorized recipients.