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 Melanotan II (Tan Jabs): Why They're Not Worth The Risk Here's the part nobody explains when they're selling you the "Barbie drug.", , Melanotan 2 is a synthetic peptide that mimics alpha MSH a hormone your body already makes to tell your skin cells to Melanotan II (MT II) Peptide Therapy Beverly Hills Don't risk using tanning products containing melanotan Therapeutic Goods Administration (TGA)