My Forever DNA Twin Zygosity Test - accurate, confidential home testing to discover if twins are identical or fraternal.
At-Home Twin Zygosity DNA Test Kit by My Forever DNA - Discover if twins are identical or fraternal with fast, accurate, and painless DNA testing from home

Accurate At-Home Twin Zygosity DNA Test

Fast, Private & Confidential Results You Can Trust

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Uncover the Truth Behind the Twin Connection ◦ Identical or Fraternal?

Packaging of My Forever DNA's Twin Zygosity DNA Test Kit, featuring two smiling boys in striped shirts and glasses. The box promotes the kit as fast, affordable, and 100% accurate, ideal for determining if twins are identical or fraternal from home.

Twin Zygosity Home DNA Test - Customizable Kit, 99.999% Accuracy, All Lab Fees & Free FedEx Shipping
$159.00
$159.00
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Two DNA test kit boxes with FedEx packaging on a white background

Twin Zygosity Home DNA Test | Multiple Location | 1 Order, 2 Kits Shipped

Multiple Location Home Twin Zygosity DNA Test Kit | 99.999% Accurate Results | 24 DNA Markers Tested | All Lab Fees & Free FedEx® Shipping Included | My Forever DNA®
from $209.00
from $209.00
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Twin Zygosity Home DNA Testing ◦ How It Works

Shopping cart icon representing “Order Your Kit” - start your secure home DNA test order with My Forever DNA.

Order Securely Online

Your DNA Test Kit ships within 1 Business Day in Discreet Packaging, ready for Quick and Private Sample Collection at Home.

DNA double helix icon representing “Collect DNA” - easily gather cheek swabs or discreet samples for My Forever DNA testing.

Collect DNA Samples


Use the included cheek swabs to gently collect DNA from each twin. Our kits are simple, pain-free, and suitable for all ages - no lab visits or blood samples required.

Delivery truck icon representing “Return Your Samples” ship your DNA kit back using prepaid FedEx envelope provided by My Forever DNA.

Return for Analysis


Send your DNA samples back to our partnered AABB-accredited U.S. laboratory using the prepaid FedEx return mailer provided. Every sample is processed with dual verification for accuracy.

Envelope icon symbolizing “Fast Results” receive your secure DNA test results by email directly from My Forever DNA, no portals.

Receive your Results


In just 1-3 business days, you’ll receive your secure, easy-to-read DNA report by email. Results clearly show whether the twins are identical (monozygotic) or fraternal (dizygotic) - giving you answers you can trust for a lifetime.

Best Time for Twin Zygosity Testing

Any Age is Perfect:

  • Newborns: Safe cheek swab collection from birth
  • Toddlers: Quick, painless process that takes 30 seconds
  • School Age: Great for educational planning decisions
  • Teenagers: Helpful for medical history and future planning
  • Adults: Finally get answers to lifelong questions

No Rush Needed: Unlike some DNA tests that work better at certain ages, twin zygosity testing is equally accurate throughout life since DNA doesn't change.

At-Home Twin Zygosity DNA Test Kit by My Forever DNA - Discover if twins are identical or fraternal with fast, accurate, and painless DNA testing from home
Smiling adult twin brothers, representing My Forever DNA’s Twin Zygosity DNA Test to determine if twins are identical or fraternal.

At-Home Twin Zygosity DNA Test Kit - Accurately Determine if Twins Are Identical or Fraternal

My Forever DNA makes it simple to determine whether twins are Identical or Fraternal with a quick, non-invasive cheek swab - safe for all ages.

Your samples are tested in our partnered U.S.-based, AABB Accredited and CAP Certified laboratory, which analyzes 24 DNA (Genetic) Markers - the highest standard in the industry. Results are delivered securely via email in just a few business days.

From start to finish, you’ll receive personalized, one-on-one support from your dedicated DNA Specialist. No portals. No call centers. Just real help when you need it.
Discover the Truth with expert care from My Forever DNA.

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Why Choose My Forever DNA

At My Forever DNA, we believe DNA testing deserves more than just a barcode and a faceless portal. That’s why we connect you with a real, dedicated DNA Specialist who guides you every step of the way-from your first question to the moment your results arrive in your inbox.

Our exclusive partnership with a US-based, AABB Accredited and CAP Certified laboratory ensures the highest standards of accuracy and reliability in your DNA results.

Our Twin Zygosity DNA Test guarantees analysis of 24 DNA (Genetic) Markers, surpassing industry standards, and undergoes dual processing for unmatched reliability.

Receive your results directly and discreetly via email within 1-3 business days after we receive your samples.

We believe in clear, upfront pricing with no hidden fees. All lab fees, prepaid FedEx shipping (both ways), and testing supplies are included in every standard kit. (

Please Note: DIY DNA Test Kits do not include shipping or supplies.)

Our home DNA testing kits are available throughout the U.S. (excluding New York). [Read our full FAQ] 

Live outside the U.S. or prefer not to have a kit shipped?
Our DIY or Make Your Own DNA Test Kits are a convenient solution for international customers or anyone who would rather not receive a kit to their home or office.

Start the process today! Use your own supplies to collect and return your DNA samples while still receiving the same accurate, lab-certified results. Learn more about our DIY vs. Standard Kits

Your Testing Options

  • Collect DNA samples from the comfort and privacy of your own home
  • Perfect for personal peace of mind, ancestry exploration, or building your family history
  • Results are for informational use only and are not court-admissible
  • What's included: all lab fees, prepaid FedEx shipping (both ways), and all testing supplies - delivered in 100% discreet packaging. 

Note: DIY or “Make Your Own Kit” options do not include shipping or supplies.

Get court-admissible DNA results for legal matters such as child custody, child support, and name changes on a birth certificate.

This type of testing requires a witnessed sample collection to meet strict legal and chain-of-custody standards.

Available exclusively at our Omaha, Nebraska office.

Schedule your in-office DNA appointment today!

Looking for immigration DNA testing? (Available Nationwide) Learn more!

Multiple location testing

Ideal for situations where siblings live in different cities or states. Each individual receives their own DNA collection kit, making the process simple, secure, and convenient - no matter the distance.
Learn more about multiple location DNA testing.

Discreet DNA testing - toothbrush, hair & more

Need a more private way to collect DNA? My Forever DNA offers discreet testing using alternative samples such as toothbrushes or hair follicles-ideal for confidential or non-traditional situations. Learn more about discreet collection.