Martina Big Is Back After Having Injections to Turn Her Into a Black Woman This Morning Comparing Melanotan Peptides With Traditional Tanning Methods For Safer, More Effective Results Age Well ATL Martina Big, a 36 year old German model, and her 38 year old husband Michael Eurwen have used Melanotan injections to darken their skin. They plan to relocate to Africa, where they feel a deep connection, Viral tanning 'Barbie drug' linked to cancer, experts warn