Melanotan II is a synthetic peptide studied for its role in melanin production and skin pigmentation It works by mimicking alpha MSH which is the hormone involved in regulating skin color Primary 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 MT 2 (Melanotan 2) Disguised Alpha VUE MT2 is not just a tanning peptide. Melanotan II is discussed because it interacts with the melanocortin system the pathway connected to Instagram