No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky 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 Love Island generation' skin cancer fear BBC News No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky