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Buy DNA zygosity test


Our non-invasive DNA twin test can quickly determine whether multiple children are identical or not. In addition, some people buy DNA twin (zygosity) profiles as a unique gift idea for parents expecting twins or their children.

Our UK-based laboratory uses the most up-to-date DNA testing technology to ensure the reliability and accuracy of our genetic testing. We were the first UK laboratory to offer accredited 25-marker DNA testing and retest all our exclusion results.


The DNA twin test kit includes mouth swabs to obtain tiny amounts of DNA from inside each sibling’s mouth. The swab is rubbed gently and painlessly on the inside of the cheek, so it is not a problem if anyone involved is scared of needles.

How many siblings to be tested?

A standard zygosity test includes two siblings. Please leave blank if you would not like to add more siblings.

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Additional Reporting

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Timeframe *

How fast do you require your test results? We can provide your test results the same working day or the next working day after delivery to our laboratory.

Shipping *

Orders must be received by 2pm for Special Delivery the next working day.

Do you require another kit to a 2nd address? *


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