Melanotan & Tanning Injections: Safe or Risky? 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 Avoid nasal tanning sprays or nasal tanners entirely. These products can produce nasty side effects, such as nausea and vomiting, high blood pressure, respiratory issues, and even links to skin cancer. Nasal Can You Take Too Much Melanotan? A Z Guide How Melanotan Peptides Work to Enhance Skin Tone and Promote Tanning Age Well ATL Melanotan What It Is and Its Relation to Skin Cancer