Twins DNA Test


Order Now

The AlphaBiolabs Twins DNA Test will confirm if twins are identical, fraternal (non-identical) or potentially semi-identical. Results are provided in just 3 business days.

Due to New York State Department of Health regulations, we cannot offer any peace of mind paternity or relationship tests to New York residents.

Complete the form below to buy your Twins DNA Test now

A zygosity twin test includes two siblings. More siblings can be added as necessary.

The standard test analyzes 25 DNA markers. The enhanced test analyzes an industry-leading 45 DNA markers and is the most powerful DNA test available. It allows more genetic material to be analyzed, which strengthens the result and provides additional reassurance.

We offer FREE Standard First Class shipping.

Please choose your own password. You will need this password if you speak to one of our advisers.

Frequently Asked Questions

About our Twins DNA Test

From just $109, including the test kit and all lab fees, our Twins DNA test - also known as a zygosity test - can help determine whether multiple children from the same birth (such as twins, triplets, quadruplets etc.) are genetically identical or not, with results in just 3 business days.

Identical siblings are known as monozygotic and will share the same DNA. This is because they were formed from a single fertilized egg that went on to split into separate embryos.

It may have been unclear in utero as to whether multiple siblings were identical. This is because identical twins don’t always share the same placenta and sac: it all depends on when the egg splits. Siblings that are of different sexes are not identical.

Establishing whether siblings are twins using a zygosity test can help assess the likelihood of conceiving twins again: there is an increased likelihood for women who have had non-identical twins.

Some diseases may also affect multiple monozygotic children so you could establish whether both/all children need testing for a particular condition.

A Twins DNA Test is or zygosity test is also a unique gift idea for multiple birth parents or their children, for information purposes only.

Identical, non-identical or semi-identical?

Our analysis will determine whether the tested siblings are genetically identical, non-identical or potentially semi-identical.

Identical siblings are known as monozygotic. This means that they were formed from a single fertilized egg that went on to split into separate embryos. Identical siblings share the same DNA profile.

Fraternal or non-identical siblings are known as dizygotic (twins), trizygotic (triplets) etc., and are the result of separate fertilized eggs. This means that they share DNA in common, as is the case with siblings from different births, but they do not have identical DNA profiles.

Semi-identical siblings are an extremely rare phenomenon. They occur when a single egg is fertilized by more than one sperm and the egg then splits to form two or more embryos. The embryos will have an identical contribution of maternal DNA, but different contributions of paternal DNA. Any non-identical siblings could potentially be semi-identical, including boy-girl twin pairs.

What will the test cost?

You can order our Twins DNA Test (zygosity test) online now from just $109. The cost of the test includes your test kit and all lab fees. 

The test includes enough cheek swabs to test two siblings.

If you would like to test more than two siblings, you can select this option when placing your order (additional charges apply).

What is the difference between the standard and the enhanced test?

Our standard twin test is already industry-leading, as it analyzes 25 DNA markers (the industry standard only analyzes 16-21 markers).

What makes AlphaBiolabs unique is that we can also analyze up to 45 DNA markers. This allows more genetic material to be analyzed, which strengthens the result and provides additional reassurance.

This is ideal for customers who want the most powerful DNA test available.

What is included in the kit?

For $109, including your test kit and all lab fees, our Twins DNA Test kit includes:

  • Test request/consent form
  • Complete, easy-to-follow instructions on how to take the test and return your samples to our laboratory
  • A pre-addressed envelope to send your samples back to us
  • Two DNA sample collection swab packages, containing two swabs in each package
  • Individual DNA test sample envelopes for two siblings

If you need to test more siblings, you can easily select this option while placing your order.

Once we have received your samples at our laboratory, we will email your password-protected results in 3 business days.

Order your Twins DNA Test (zygosity test) online now for $109. Payment details are 100% secure and will never be sold to third party advertisers.

How do I collect the DNA samples?

Once you have received your kit, simply follow the instructions included to collect your samples.

Rub the swab gently and painlessly on the inside of the cheek. Two packs of two swabs are provided.

You can request more swabs in your kit for additional siblings when placing your order.

Is a parent's sample required?

No, we can perform twin DNA testing (zygosity testing) without a parent's sample.

If twins are determined to be potentially semi-identical, samples from one or both biological parents may be required to confirm this.

When will I receive my kit?

Simply buy your test online now, and we’ll mail it out to you immediately.

You can choose to receive your kit by USPS First Class Mail (included in the cost of your test), or upgrade to USPS Priority Mail (+$9.99) or USPS Priority Mail Express (+$24.99).

When will I receive my results?

Once you have collected your samples, simply mail them back to our laboratory using your preferred shipping method.

As soon as we receive your DNA samples, we begin the testing process at our accredited laboratory.

You will receive your results by password-protected email in 3 business days after we have received your samples.

Our testing is extremely accurate

AlphaBiolabs' Twins DNA test - also known as a zygosity test - is 100% accurate.

We are an ISO 17025-accredited laboratory, meeting the very highest international quality standards.

Can kits be sent to two addresses?

Yes, AlphaBiolabs can mail your Twin DNA Test kits to two different addresses.

You will find the option to list a 2nd address when you check out.

What is peace of mind testing?

At AlphaBiolabs, we offer peace of mind testing with all our DNA testing kits.

As the name suggests, a peace of mind DNA test is for personal use only.  

The results of these tests can give you the answers you need, but they cannot be used for legal purposes or in court proceedings.

Peace of mind tests also allow you to collect your samples quickly and easily at home, without the need to use a more costly and time-consuming third-party to verify the DNA sample collection.

If you require a legal DNA test, click here or call 727-325-2902.

Can I buy a legal DNA test?

Yes, for more information on our legal DNA tests, please visit here.

We offer a wide range of legal DNA tests that are all AABB accredited and court admissible for many different legal matters. Results are provided in just 3 business days and prices start from just $279.00. Call us now on 727-325-2902.

Order Now

Read reviews from real customers

28 years later I gave my twins the DNA test to see if they were identical or fraternal. They are mirror image twins. The Dr told me at birth they were fraternal due the the fused placenta. Well they are IDENTICAL. We finally know for sure!!

on Trustpilot

We used AlphaBiolabs to find out if our twins are identical or fraternal. The process was quick and easy, just a cheek swab for our 6 month old twins! We got the results securely in our email protected with a password. Turns out our boys are identical!! We would highly recommend AlphaBiolabs!

on Trustpilot

I couldn’t believe how quickly the results came back! We weren’t sure whether or not our 14 year old twins were identical and I was embarrassed that, as a mother, I would have to say, “I don’t know” when asked.

on Trustpilot

Order Now