Hi Melanotan or afamelanotide or the commercial name Scenesse is FDA approved for the treatment of Vitiligo in the form of a pellet therapy.
It can create a tan on 100% of your body. It has been approved in Europe for 5 years.
Would have to be off label use fro general...
Only purchase through a licensed physician to ensure you are getting actual melanotan II peptides and to make sure you are a candidate. You can find providers at through the International Peptide Society.