Dermatologist Explains: Melanotan 2, SPF Oils, and More! 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. That quick tan injection is NOT worth the risk., Melanotan peptide injections stimulate pigment cells, and its use has been linked to rapid changes in moles, including the potentially fatal skin Melanotan & Tanning Injections: Safe or Risky? Melanotan & Tanning Injections: Safe or Risky?