Emerging Threat: Melanotan, Repackaging, and Online Sales Tanning peptides like melanotan are trending online, but theyre not approved, not regulated, and illegal to advertise in Australia. When products havent been properly tested, theres no way to know FDA Fast Facts Melanotan is not a tan. It's an unregulated peptide with real risk. As a dermatologist, here's the reality: It has been linked to new and changing moles including cases of Melanotan Tanning Peptides: Safe Use, Side Effects & How It Works Scientifically Melanotan II (Tan Jabs): Why They're Not Worth The Risk