Imagine just wanting to be jacked and tan and you end up like this? Melanotan II is a peptide that increases the melanin in your skin and can give men a boner that No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky MD breaking down Melanotan II Part 2 of my peptide series. The research, the risks, the reality. Long term safety data? Nonexistent. What is Melanotan II the drug that the TGA urges consumers to avoid?