Frontiers Melanocortin therapies to resolve fibroblast mediated diseases Experts lash use of popular social media sun tanning drug Melanotan Frontiers The melanocortin receptors as targets for general obesity: contextualizing clinical failures and analyzing future perspectives Melanotan II: Tanning injections, nasal sprays harmful to health 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 What It Is and Its Relation to Skin Cancer