The Dark Side of Melanotan Tanning Injections: My Personal Experience Revealed Lets look at sunless tanning, ., Firstly theres the injections and nasal sprays which typically have an active ingredient called melanotan. This is a synthetic compound that stimulates the Melanotan peptide might seem like the cool thing to doit makes you look tan., But these unregulated injections come with real risks., They can cause unpredictable skin changes, including darkening of What exactly is Melanotan and how does the tanning solution work?