Dangerous' tanning products promoted by influencers MT 1 (Melanotan I) Polar Peptides Melanotan is trending again. As a dermatologist, I strongly need to tell you It's an unapproved injectable peptide, and we're seeing: nausea and flushing darkening of existing moles 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