Nasal tanning sprays and oral tanning drops are often marketed as quick fixes for glowing skin but these products are unregulated in the UK, with unknown ingredients, dosing, and formulation., They What exactly is Melanotan and how does the tanning solution work? 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 I was addicted to illegal nasal tanning sprays I loved the confidence my 'glow' gave me, but it had scary side effects