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 Maintaining Tan with Melanotan 1: Dosage, Results, and Differences from Melanotan 2 Before and after Melanotan tanning therapy, sunless tanning results Melanotan Tanning Peptides: Safe Use, Side Effects & How It Works Scientifically