I am not bein vain, but have lived with vitiligo all my life.?

I would like to know if anyone has used MELANOTAN and whether they have found it effective. Or does it just work on the darker patches. I know this drug is still not legal and not really happy about usin it yet. But if it worked it would be fab as I have fake tanned for twenty years and is very time consuming to myself and my family. But I just can't go without it as I don't feel happy as 85% of my skin is now white and does not tan naturally..thank you