Kinship Test

This analysis is mainly used to verify if a brother and a sister share the same biological father, although it can also be used to verify if they share the same father and mother.

The Kinship Test uses statistics to evaluate the amount of DNA that two (or more) persons share and, in consequence, determines whether or not they share a specific biological relationship.

For example, full siblings have more DNA in common than half-siblings; and half-siblings have more DNA in common than two unrelated individuals.

This test can also be used to verify other relationships, like paternal grandfather and granddaughter, paternal grandmother and grandson, uncle/aunt-nephew/niece, etc. However, it is important to bear in mind that the farthest the relationship, the hardest it will be to obtain result.

The accuracy of this test ranges from 80% to 95%. In some cases the result of this test can be inconclusive, meaning that it is not possible to determine if the alleged biological relationship exists or not. This scenario can sometimes be avoided by supplying additional samples; for example, by supplying the mother's sample when testing siblings to verify paternity. In certain cases, it is absolutely necessary that the mother's sample is supplied in order to perform this test. Please contact us for further information.

Kinship Test  299 € 80%-95% accurate


The price indicated above is the final price for the analysis of 2 people with standard samples. If the mother's sample is needed, it will be tested at no additional cost (for 1 mother, standard sample).

If you are unsure about whether this test is the best testing option for your case, please contact us. Please remember that, if there is a blood relationship between the fathers/mothers, this analysis may not be the adequate procedure for you; please, contact us before ordering your kit.


Buy Now
Recorded Delivery Shipping Included
Order Kit for 9€
Pay the remainder later


You have 2 purchase options:

  • Pay for the complete test now and receive the kit by recorded delivery mail at no extra cost. The kit is sent with a tracking number and delivered upon signature.
  • Pay only a 9€ deposit (deductable from the test price), and receive the kit by normal post. Pay the remainder when you send in your samples.
Take a relationship test in 4 simple steps:
  1. Place your order.
  2. Receive your sample collection kit and collect the samples. Easy and detailed instructions on how to collect the DNA samples are included with the paperwork.
  3. Send to us the DNA samples, paperwork and remaining payment (if any).
  4. Receive your test results in 15-20 working days.
Order Kit for 9€
Pay the remainder later
Can't send a mouth swab?

Paternidad-discretaWe can accept other samples for testing like nail clippings, hairs, blood, etc. Check the information on the non-standard samples we can accept here.

Can't wait for the kit to arrive? Paternidad-discreta

Request the paperwork by email and follow the instructions to collect the samples with cotton buds. Request the paperwork here.

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