Health expert says Melanotan II darkens skin moles and can make melanoma hard to detect Herald Sun Melanotan II A Sun Kissed Look, and a Confident You. Melanotan & Tanning Injections: Safe or Risky? Melanotan 2 10MG Raw Amino 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. Melanotan II: Tanning injections, nasal sprays harmful to health