Melanotan 2 Injectable Peptide 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 Melanotan II an overview ScienceDirect Topics Discover Melanotan 1 vs 2 Differences Peptide Works MELANOTAN 2 10MG Beverly Hills Rejuvenation Center That quick tan injection is NOT worth the risk., Melanotan peptide injections stimulate pigment cells, and its use has been linked to rapid changes in moles, including the potentially fatal skin