Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn I accidentally undid years of skin work and didnt realize it until it was too late., At the beginning of November, I started taking melanotan 2 and honestly?, I loved it., My tan deepened There are two peptides people talk about for tanning: Melanotan 1 and Melanotan 2. Melanotan 1 works slower and mainly targets the skin, leading to a more gradual and even increase in pigment with Understanding MT 1 vs MT 2 Peptides: Key Differences TikTok Evolve Tanning Melanotan 2 Injection Kit, Melanotan 2 Nasal Spray, Melanotan 2 Australia