Melanotan: Dangerous 'Barbie drug' nasal spray TikTok trend prompts new TGA warning Exclusive This guy injected himself with a drug called Melatonan II for 5 months. Here's his before after. : r pics Man warns against 'dangerous' tanning injections after turning so dark he 'looked like Madge from Benidorm' and now has the freckled skin of a 60 year old Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and longer lasting than Melantan 2 Side Effects TikTok Melanotan II (Tan Jabs): Why They're Not Worth The Risk