Melanotan is not a tan. It's an unregulated peptide with real risk. As a dermatologist, here's the reality: It has been linked to new and changing moles including cases of Melanotan II (Tan Jabs): Why They're Not Worth The Risk View of Association of tanning injection with hypercortisolism, hyperglycaemia and ketosis in type 1 diabetes mellitus British Journal of Diabetes Melanoma: Symptoms, Treatment and Prevention Live Science Melanotan What It Is and Its Relation to Skin Cancer