36 year old Martina Big, who has been injecting Melanotan, a synthetic hormone to darken her skin, plans to permanently relocate to Kenya Martina Big who 'identifies as black' reveals she plans to move permanently to Africa Daily Mail Online White model who 'changed race' says she empowers black women after EXTREME tan injections Daily Star Alem passa por procedimento para ter pele negra: Sou transracial Meet Transracial woman Martina Big. Martina has had several melanin injections into her skin to turn her skin colour black and now identifies as an African woman. Martina is also the owner White model Martina Big, who now a ''black' after taking tanning injections, announces plans to move to Africa.