I accidentally undid years of skin work and didnt realize it until it was too late., At the beginning of November, I started taking melanotan 2 and honestly?, I loved it., My tan deepened Afamelanotide tested as a new treatment for vitiligo Vitiligo Clinic How Long Does It Take For Melanotan To Work? Peptides for tanning do exist. Melanotan 1 and Melanotan 2 both work at increasing melanin in the skin. Melanotan 1 takes longer to activate. Melnotan 1 is FDA approved. Melanotan 2 does libido, What is Melanotan II the drug that the TGA urges consumers to avoid? HPRA Warns of Dangerous Melanotan 2 in Tanning Products Obelis Group