Donor sperm from national or international sperm banks can be used. The only requirement is that these sperm bank work in accordance with the applicable German laws. Our close cooperation with the Berliner Samenbank GmbH (Berlin Sperm Back located in the same building) enables a couple to find the optimal donor sperm. The listing of certain characteristics of the donor (eye colour, hair colour, weight, height, blood type, build, head shape, hairline, and many more) enables a donor to be found who is outwardly as similar as possible to the man. This means that the child who is born as a result of the treatment bears a resemblance to both social parents. Very few formalities are necessary for heterosexual couples.
For female couples and single parents, an additional certificate of registration as well as family law and psychosocial consultations may be necessary.