Say NO to tanning injections and nasal sprays. They are illegal in the UK and have serious, harmful side effects 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 Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn 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 Melanotan & Tanning Injections: Safe or Risky?