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 Buy Melanotan 1 (MT 1) Melanocortin Research Peptide Melanotan Altmeyers Encyclopedia Department Dermatology Been testing out MT 1 peptide (Melanotan I) lately and honestly this stuff works. Originally developed for skin protection and UV resistance, but most people know it now for boosting melanin and giving Melanotan II Safety: Tanning Injection LIVV Natural Melanotropic peptides: more than just Barbie drugs and suntan jabs?