Could this new compound give you a suntanwithout the sun? Science AAAS 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. Stay Sun Kissed All Year Round with Melanotan 2 Melanotan is a tanning peptide that stimulates the production of melanin in the body to foster a deep, natural tan. This is the No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky