Let's talk about a really fun peptide that I call the vacation peptide you'll understand why after you read this! Melanotan 1 and 2 are basically just tanning peptides with fun DOMYOS L CARNITIN Bodybuilding Decathlon Melanotan 2 Monkey Lab Peptides 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,