Melanotan 2 10mg Particle Peptides Melanotan & Tanning Injections: Safe or Risky? Afamelanotide tested as a new treatment for vitiligo Vitiligo Clinic 5 days progress. I've been taking 250mcg of Melanotan II and tanning for 10m outside daily. It's working Tighter in the hamstrings, glutes are still holding all of my fat so Avoid nasal tanning sprays or nasal tanners entirely. These products promise an all over tan without sun exposure but they are unregulated, can be unsafe, and contain potentially risky substances like Melanotan 2.