Maintaining Tan with Melanotan 1: Dosage, Results, and Differences from Melanotan 2 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 MT 1 Spray Suppliers, Manufacturers, Factory Wholesale Price Bloom Tech Peptides for tanning do exist. Melanotan 1 and Melanotan 2 both work at increasing melanin in the skin. Melanotan 1 takes longer to activate. Melnotan 1 is FDA approved. Melanotan 2 does libido, Melanotan 1 vs. 2: My Summer Journey & Real Results