Peptides are having a moment, but not all of them are harmless. One that's getting a lot of attention right now? Melanotan II. It's being used to achieve a tan from the Tanning from the inside out = Highly Dangerous and Illegal! Many products advertised on social media platforms promising a tan from the inside out or a tan without sun such Hard Side Effect DocCheck Figure 2 from Changes of melanocytic lesions inducedby Melanotan injections and sun bed use ina teenage patient with FAMMM syndrome Semantic Scholar