A private person’s request for a twin study

Service description 

The Finnish Institute for Health and Welfare (THL) performs DNA test of twins.

Privacy notice for a DNA test requested by a private individual

Who we provide the service for

The service is offered to private individuals who wish, at their own expense, to request a DNA test of twins. If you wish to request the test, please contact THL’s forensic genetics team (contact details are provided at the bottom of the page). We will send you all the necessary documents and sampling materials with instructions. The samples for the twin test can be taken by the individuals themselves.

What you can expect from us 

The test is usually completed within two weeks. THL sends the required number of test reports as a cash on delivery (COD) shipment to the party who requested the test. The person who requested the test forwards the results to the persons tested as well as to those who have given their consents for the test of persons under 15 years of age. All persons entitled for the results can also obtain their own copy directly from the THL, after the COD test result has been claimed by the person requesting the test. 

The Forensic Chemistry Unit is a T077 testing laboratory accredited by the FINAS accreditation service. The unit is accredited according to the standard SFS-EN ISO/IEC 17025:2017 and its scope of competence can be seen on the FINAS website.

Fees and charges 

The test is subject to a fee. The price of the test at THL is 301,20 € per twin pair (including 25.5% VAT). The person requesting the test is responsible for the costs.

How to use the service and contact us

Finnish Institute for Health and Welfare
Forensic Genetics 
P.O. Box 30
00271 Helsinki

e-mail: vanhemmuustutkimus(at)thl.fi
tel: 029 524 8900

Marjo Avela
Chief Specialist
[email protected]
tel: 029 524 8723

Cost of calls

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Laboratory tests and analyses