All Lab Fees Included | No Kit Activation. No Online Portal. Real Human Support.
All Lab Fees Included | No Kit Activation. No Online Portal. Real Human Support.
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Twin Zygosity Home DNA Test | Multiple Location | 1 Order, 2 Kits Shipped

$209.00

Twin Zygosity DNA Testing At-Home | Multiple Location - 1 Order, 2 Kits Shipped

Find Out if Twins Are Identical or Fraternal - Even from Different Locations

My Forever DNA’s Twin Zygosity DNA Test Kit determines whether twins are monozygotic, also known as identical twins, or dizygotic, also known as fraternal twins, using simple cheek swabs.

Our Multiple Location Kit makes it easy to test twins in separate homes, cities, or states. As the original creators of the Multiple Location Home DNA Test, My Forever DNA® provides fast, accurate, confidential results with real human support.

What’s Included in Each Kit Shipped

Each kit is custom-prepared and includes a unique identification number to help ensure samples are matched correctly and securely.

  • Easy, step-by-step instructions
  • DNA sample envelopes
  • FDA-approved cheek swabs
  • Result notification form
  • Prepaid FedEx return envelope for fast, trackable delivery to our laboratory

What twin zygosity testing determines

A twin zygosity DNA test determines whether twins are identical (monozygotic) or fraternal (dizygotic). Identical twins come from the same fertilized egg that split during early development and share nearly identical DNA. Fraternal twins come from two separate eggs fertilized at the same time and share about 50% of their DNA, the same as any other pair of full siblings.

The multi-location configuration ships one kit to each twin at their separate addresses. This is the right choice when the twins are adults living in different cities, when one twin was placed for adoption and is testing with the reunited sibling, or when the twins simply live apart and don't want to coordinate a single collection appointment.

When zygosity testing is worth doing

  • Hospital or delivery records were unclear, missing, or conflicting, and the parents want scientific confirmation.

  • Adult twins want to confirm whether they're identical for medical planning (some genetic risks are shared between identical twins but not fraternal).

  • Adoption cases where one twin was placed with a different family and biological information was not recorded.

  • Personal curiosity about the biological relationship between the twins.

  • Discussions with a medical provider about donor matching or shared genetic risks.

How accurate is a twin zygosity test?

When cheek swabs from both twins yield viable DNA, the result is scientifically conclusive. Identical twins share essentially the same DNA at every marker location; fraternal twins share the same DNA at approximately half of the marker locations. Testing runs through a US-based AABB-accredited and CAP-certified laboratory partner with dual processing. The comparison runs at 24 DNA genetic markers with dual processing.

Need a Different Twin DNA Testing Option?

Testing both twins from the same location?
Our Standard At-Home Twin Zygosity DNA Test Kit may be the better fit.

Need a discreet or alternative DNA sample?
View our Discreet DNA Testing Kit for private sample options beyond cheek swabs.

Clarity, Care & Transparency

For informational use only. This product is not a medical device and is not intended to diagnose, treat, prevent, or assess any medical condition.

Learn more about privacy, product transparency, responsible advertising, and customer trust in our Trust & Transparency Statement.

This at-home DNA test is not for legal or court-admissible purposes unless a legal chain-of-custody test is purchased. Learn more about our Legal DNA Testing options.

Confirm if your twins are identical or fraternal - no matter the distance - with accurate, fast, and private results from My Forever DNA®.

1-3 Business Day Results After Both Participants’ Samples Are Received

Your results are completed and emailed within 1-3 business days after both participants’ DNA samples have been received, accepted by the laboratory, and placed into processing. In some cases, results may be completed even sooner.

Because this order includes separate DNA kit shipments, sample tracking works a little differently. You will not receive a sample-received confirmation until both participants’ completed DNA samples have been returned to the laboratory and placed into processing.

Please use the return FedEx tracking numbers included in your email to monitor when each participant’s DNA samples have been delivered back to the laboratory.

What to Expect Once Both Samples Are Received

  • Personal Confirmation From Your Dedicated DNA Specialist: Once both participants’ samples have been received and placed into processing, your dedicated DNA Specialist will personally confirm your case status.
  • Clear Result Turnaround Timeline: You will receive a clear timeline so you know when to expect your confidential DNA test results.
  • Direct Access to a Real Person: If you have questions or need clarification, you can speak with a real My Forever DNA® Specialist instead of relying on an automated portal.
  • Secure Results Delivered by Email: Your completed results are sent as a secure, full-color PDF directly to the authorized recipient by email.
  • No Portal, No Barcode Activation, No Impersonal Process: There is no online portal to navigate, no barcode activation required, and no confusing automated system.

Important Turnaround Information

Results are processed and emailed Monday through Friday only. Weekends and holidays are not included in the 1-3 business day result turnaround time.

The Human Advantage Behind Every Accurate DNA Result

We understand how personal, emotional, and important DNA testing can be. That is why My Forever DNA® does things differently by creating a more private, guided, and human DNA testing experience from start to finish.

You should not have to receive life-changing DNA test results through an impersonal portal with no clear way to speak to a real person.

Once your DNA samples arrive at the laboratory, your case is assigned to a Dedicated DNA Specialist who helps guide the process and keep you informed.

  • Direct phone and email communication with a real person
  • Personal confirmation when your DNA samples are received and placed into processing
  • Clear timelines and expectations so you know what happens next
  • Support before, during, and after results if you have questions or need clarification
  • No barcode registration, no kit activation, and no confusing online portal to navigate

My Forever DNA® provides a private, guided DNA testing experience backed by real human support when family answers matter most.

Your DNA Has a Story. We Keep It Yours.

Your DNA is personal - and your answers should be, too. Every My Forever DNA® at-home DNA test is designed with privacy, discretion, and real human support from start to finish.

Your kit arrives in a plain FedEx envelope with no company name, DNA testing language, or identifying details on the outside.

Unlike many DNA testing companies, we do not require online account setup, barcode activation, kit registration, confusing portals, or passwords to remember.

What Makes My Forever DNA Different

  • No consumer DNA profile created or stored in a genealogy database
  • No genealogy database participation or genetic matching platform
  • No DNA data sharing, selling, or third-party access
  • No uploading to ancestry, law enforcement, government, or consumer DNA databases
  • No kit activation, barcode registration, online portal, or account setup
  • Discreet shipping in a plain FedEx envelope
  • Discreet billing - your purchase appears as MFD on your statement

Real Humans. Real Privacy.

A dedicated My Forever DNA® Specialist is available to help guide you through the process, answer questions, and make your experience feel personal, private, and supported - never confusing, automated, or overwhelming.

Private Answers. Discreet Testing. Real Human Support.

View Our Privacy Policy

2 Complete Twin Zygosity DNA Kits Shipped to Separate Addresses

Each participant receives a complete, secure at-home DNA collection kit shipped directly to their separate address, making it easy to complete DNA testing from different cities, states, households, or locations.

For added privacy, each kit is shipped 100% discreetly in a plain FedEx envelope, helping protect the confidential nature of your DNA test from the moment it is delivered.

This multiple-location DNA testing option is ideal when participants cannot collect their samples together but still need a private, accurate, and convenient way to complete DNA testing from home.

Each Kit Includes

  • All Lab Fees Included: Your purchase includes the DNA collection kits, laboratory testing, sample processing, and result handling. There are no surprise lab fees or hidden processing fees after purchase.
  • Step-by-Step Instructions: Clear, easy-to-follow directions guide each participant through simple, painless cheek swab collection and proper return shipping.
  • Result Notification Form: Helps ensure confidential DNA test results are sent directly and securely to the appropriate participant or authorized recipient.
  • DNA Sample Envelopes With Unique Identification Numbers: Each DNA sample envelope is clearly labeled with a unique identification number to support proper participant matching, secure sample tracking, and accurate processing at our partnered AABB-accredited U.S. laboratory.
  • FDA-Approved Cheek Swabs: Safe, non-invasive cheek swabs make DNA sample collection simple, painless, and suitable for participants of all ages.
  • Prepaid FedEx Return Envelope: Fast, trackable FedEx return shipping is included with each kit, so participants can securely send their completed DNA samples back to the laboratory with no additional postage fees.

How the Multi-Location Twin Zygosity DNA Test Kit Works

Step 1 · Order and enter both addresses

Complete your purchase and enter both twins' addresses.

Step 2 · Both kits ship separately

Both kits ship within 1 business day. FedEx delivery in 1 to 2 business days for US addresses.

Step 3 · Each twin collects at their address

Each twin collects two cheek swabs by rubbing each swab against the inside of the cheek for 60 seconds. Air-dry the swabs at room temperature for at least 30 minutes before packaging.

Step 4 · Each twin returns their kit

Each twin seals dry swabs and the completed notification form in the return envelope and ships to the lab.

Step 5 · Lab holds until both shipments arrive

Processing doesn't start until both packages are logged in against the shared case identifier.

Step 6 · Zygosity comparison

The lab runs the comparison and determines whether the twins are monozygotic or dizygotic.

Step 7 · Report delivery

The full-color PDF report is emailed to the case owner within 1 to 3 business days of both samples arriving at the lab.

Need kits shipped to more than two locations? Please contact My Forever DNA® at 402-800-7161 to place a custom order.

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Lab Fees Included

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402-800-7161

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Based in the USA

7004 Maple St., Omaha, NE 68104