Love Island generation' skin cancer fear BBC News We are OBSESSING over this Melanotan II transformation After only 14 days using the Melanotan injections combined with one day of laying in the sun, can you believe the difference?? Nothing Nasal tanning sprays, or nasal tanners, are unregulated and potentially unsafe products that could be linked to skin cancer. These products can produce nasty side effects, such as nausea and vomiting, high 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 Melanotan What It Is and Its Relation to Skin Cancer