If you are over 18 years of age, you can register using the adult twin registration form. 
Please note that both twins will need to join Twins Research Australia, therefore please include your co-twins email address on the registration form where requested and they will then receive a link to register themselves.

Twins under 18 years of age can be registered by a parent or guardian using the junior registration form.

To register by phone, please call us on 1800 037 021 (free call Australia wide).

We will send out a welcome pack to all newly registered pairs; if you do not receive a confirmation phone call from us and a welcome pack please contact us.

Please note: If you (or your parents) are already receiving communications (eg. Study Invitations, eNews) directly from Twins Research Australia, you are already a member. Please do not re-register. Instead, click here to update your contact details.