Melanotan II Skin Pigmentation & Libido 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 Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Melanotan 2 Vials: Premium Tanning Peptide for Glow Sharing my personal experience with Melanotan tanning injections (now nasals) how vanity led me down the path of using it, thinking I'd done all my research. Now, years later, I'm dealing with Melanotan 2 Dosage Calculator and Chart A Z Guide