Sibling DNA test


Contains DNA collection material and documentation for 2 participants. Add participants for 119 € each. With the sibling test we determine whether the participants share the same father and / or mother. Free Shipping ✓


Weitere Informationen:

  • DNA test for 2 participants. Please expand at will
  • Up to 99.99999% probability with confirmed relatives
  • 100% certainty when relationship is excluded
  • reliability due to the 4-eyes principle
  • free DNA reports for all participants
  • Unlimited right of withdrawal before testing
  • free customer service, which will clarify all questions before and after the analysis


Variants of DNA sibling-testing:

Brother test

We can use the analysis of the Y chromosome to determine a biological father. But since it is the same Y-Chromosome that is passed through the complete male line caution is advised. If another male relative is a putative biological  father, please inform us beforehand.

Sister test

If the mother wants to take part in the test we can conduct a simple maternity test.

If she cannot be part of the testing we can analyze the entire maternal line by examining mitochondrial DNA. If 2 women are certain to share a biological mother, the joint biological father can be determined by an X chromosome test. If the mother takes part in the test the results become more accurate.

Brother-Sister Test

A sibling test between participants of different sexes can be complicated. We recommend involving even more relatives in the test. Please discuss the options with us in advance.

With this test we determine full or half siblings.

How long does it take to get the results?

It may take us up to 1 week or more to establish a result. Depending on your question the inclusion of different relatives can be helpful. Please contact us before you send your samples. We can discuss whose samples would be helpful with your specific relationship test. (for more background info please read on: FAQ-relationship testing)

Accuracy / how reliable is the result?
We confirm a relationship between the participants with a probability of up to 99,99999%. An exclusion will be given with 100%

Your advantages with our DNA testing service

  • Buy once, all participants will receive the complete test set regardless of their place of residence and their own DNA report
  • No hidden costs


Unlimited cancellation period before testing

  • statuary right of revocation: 14 days before testing
  • only with us: withdraw from the contract any time before testing


Free service

  • unlimited right of withdrawal before testing
  • free customer service before and after purchase


Discretion and data security

  • discreet delivery to your email
  • we provide information about the stored data and delete as requested



  • since 2007 we are ISO 17025 accredited
  • since 1998 we excel in analyzing DNA


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