Melanotan II Simple Peptide Melanotan II (Tan Jabs): Why They're Not Worth The Risk 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 Melanotan What It Is and Its Relation to Skin Cancer