
DNA Twin Test
- Fast results within 1-2 working days
- Easy at-home sample collection
- AABB, ISO/IEC 17025 & CAP-CLIA Accredited
$149 $271
Need a legally admissible test for court?
DNA Twin Testing
The DNA Twin Zygosity Test will conclusive confirm whether a set of twins are Identical Twins or Fraternal Twins. It is not always 100% conclusive during birth whether a set of twins are identical or fraternal. The only way to conclusively confirm zygosity is through genetic testing. The DNA Twin Test can be taken by twins of all ages.
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.

Painless Mouth Swabs

Secure Digital Results
Frequently Asked Questions
Yes, we can. If the participants are located in different places, we can send parts of the DNA test kit to separate addresses. During checkout, simply write “Please split kit” in the “Additional Notes” box and specify where to send each component. For example, you can say “Send one kit to [Name, Address]” and “Send the second kit to [Name, Address]”. Each component is uniquely barcoded, so once your samples arrive at the lab, they will be tested together.
For legal purposes such as court proceedings, child custody, support, or inheritance claims, you will need to order the Legal DNA Twin Test. This test requires a chain of custody procedure to ensure its admissibility in court. The process involves a neutral third party collecting the DNA samples, proper identification of the participants, and the samples being directly sent to the testing lab. Legal DNA Twin Testing is available in the US, Canada, and the UK.
There are no age restrictions for participating in a DNA twin test. Individuals of any age, including newborns, can take the test. However, for minors, consent from a legal guardian is required.
DNA Answers, Right at Home

Fully accredited

Total Confidentiality
Expert Support
Related Test Kits

$99 $180
Confirm the biological relationship between a potential father and child.

$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!

$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?

$149
Understand your body’s unique ability to break down lactose, a sugar found in dairy products. Our easy-to-use test analyzes your DNA for key genetic markers associated with lactose tolerance and intolerance.

$149
Is caffeine your friend or foe? Our simple DNA test reveals if you’re a fast or slow caffeine metabolizer, so you can adjust your intake and feel your best.

$249
Discover your genetic risk for Celiac Disease. This simple DNA test provides insights into your gluten sensitivity from the comfort of your home.

$149
Discover how your genes affect your reaction to alcohol with our at-home DNA Alcohol Intolerance Test. This simple test offers valuable insights, helping you understand and manage how you drink.

$149 $271
Find out the likelihood of a true biological relationship between a potential aunt/uncle and niece/nephew.