Comparing Melanotan Peptides With Traditional Tanning Methods For Safer, More Effective Results Age Well ATL 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 Injection What does it do? Avoid nasal tanning sprays or nasal tanners entirely. These products promise an all over tan without sun exposure but they are unregulated, can be unsafe, and contain potentially risky substances like Melanotan 2. Reminder of serious health risks with 'Melanotan 2' self tan products Irish Pharmacist Melanotan II synthetic tanning drug molecule, illustration Stock Image F029 9531 Science Photo Library