DNA Sibling Test$149
DNA Sibling Test
Easily determine the likelihood of two people being full siblings, half siblings, or unrelated with our private at-home DNA Sibling Test Kit. Get fast, accurate results available discreetly online within 1 to 2 business days – the perfect solution when a child’s parents are unavailable for testing.
Turnaround:
1-3 business days
Sample Type:
Mouth Swabs
Use Type:
Personal knowledge
- Fast results within 1-2 working days
- Easy at-home sample collection
- AABB, ISO/IEC 17025 & CAP-CLIA Accredited
$149
Verify Sibling Relationships with Confidence. Get Fast, Accurate DNA Results.
At-Home DNA Testing
DNA Sibling Testing
Are you unsure if you and your sibling share the same father or even the same parents? The DNA Sibling Test is an excellent choice to determine whether two or more individuals are full siblings, half siblings or not siblings at all.
Our state-of-the-art laboratory ensures precise results, giving you the confidence and clarity you seek. However, if the parents in question are available for testing, we recommend taking the paternity or maternity test for even greater accuracy.
How it works
Order
Order your kit online and collect your samples with the supplies inside your kit.
Send
When you’re finished collecting your samples, simply mail them to the lab for analysis.
Analysis
Testing begins as soon as your package is delivered to the laboratory.
Results
Download your results from your secure online account as soon as they’re ready.
Easy Sample Collection
Painless Mouth Swabs
Collect DNA samples easily with a simple cheek swab. It's safe for everyone, from newborns to adults.
Secure and Confidential
Secure Digital Results
Receive your confidential results through a password-protected online portal, ensuring your privacy and peace of mind at every step.
Frequently Asked Questions
Can the DNA Sibling Test Kit Be Shipped to Multiple Addresses?
Yes! If test participants are in different locations, we can send parts of the DNA test kit to multiple addresses. During checkout, simply enter “Please split kit” in the “Additional Notes” box and specify where each component should be sent. For example, you can request: “Send one kit to [Name, Address]” and “Send the second kit to [Name, Address].” Each kit is individually barcoded, ensuring all samples are processed together at our laboratory.
Can I Use These Results for Legal Purposes?
For legal matters such as court proceedings, child custody, support cases, or inheritance claims, you will need to order the Legal DNA Sibling Test. This test requires a chain of custody procedure to ensure the results are admissible in court. The process includes having DNA samples collected by an impartial third party, proper identification of participants, and samples being directly sent to the testing laboratory. Legal DNA Sibling Testing is available in the US, Canada, and the UK.
Does the DNA Test Kit Expire?
No, the test kits do not have an expiration date and can be stored indefinitely before sample collection. However, once a sample is collected, it is recommended to send the kit to our laboratory for testing within 3 months.
How Do I Read My DNA Sibling Test Results?
Your results will display two numbers (alleles) for each marker, representing the number of repeats inherited from each parent. You may have identical alleles at a marker, or different ones. These allele numbers are compared between the two individuals being tested, and a statistical analysis determines the likelihood of them being biologically related siblings.
- Full siblings (same mother and father) will have a sibling index greater than 1.0.
- Half siblings (one parent in common) will also have a sibling index greater than 1.0.
- The higher the sibling index above 1.0, the stronger the evidence that the individuals are biologically related as siblings.
- Non-siblings typically have a sibling index value of less than 1.0.
DNA Answers, Right at Home
Fast, reliable DNA relationship tests from an AABB-accredited lab.
Fully accredited
Our laboratory holds all of the prestigious DNA laboratory accreditations: AABB, CAP, CLIA, SCC, and ISO17025. We are committed for quality for every single DNA test.
Total Confidentiality
Your privacy is our top priority. All tests are conducted in a secure, accredited lab, and your results are shared exclusively with you through a password-protected online portal.
Expert Support
Our team of customer care specialists are here to guide you through the process, answer your questions, and provide any assistance you may need.
Related Test Kits
Behavior & Traits
Warrior Gene Test
$149
Are you a risk-taker? Do you thrive under pressure? Discover your genetic predisposition for aggression, risk-taking, and other key traits with our easy-to-use, at-home Warrior Gene DNA Test.
Behavior & Traits
DNA Female Infidelity Gene Test
$149
Do you carry a genetic variant that increases your risk of cheating on your partner? Maybe you can blame your recent indiscretion on your genes!
Disease Risk
DNA Skin Health DNA Test
$249
Your skin’s appearance is influenced by your diet, the environment, and your genes. Take this test so you can personalize your skincare routine to your genetic makeup.
Diet & Fitness
DNA Nutrition Test
$249
Discover your body’s ideal fuel, pinpoint hidden deficiencies, and maximize how you absorb nutrients with our DNA Nutrition Test. This simple at-home test reveals how your body processes carbs, fats, vitamins, and minerals – giving you the power to fuel yourself right.
Disease Risk
ApoE Cardiovascular Disease DNA Test
$195
Variation in the APOE gene is one of the strongest genetic risk factors for cardiovascular disease. It also affects how well you respond to statins and dietary changes used to modify your risk. Are you at increased risk?
Disease Risk
DNA Alzheimer’s Disease Test
$195
Discover if you are genetically predisposed to late-onset Alzheimer’s with this simple, at-home DNA test. This test detects whether you carry the APOE4 variant, a key genetic risk factor linked to an increased risk of Alzheimer’s disease.
Diet & Fitness
DNA Celiac Disease Test
$249
Discover your genetic risk for Celiac Disease. This simple DNA test provides insights into your gluten sensitivity from the comfort of your home.
Relationship Tests
DNA Aunt/Uncle Test
$149
Find out the likelihood of a true biological relationship between a potential aunt/uncle and niece/nephew.