Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and PhotoFacial Before & After Melanotan II is a peptide that supports melanin production meaning your glow can start from the inside out (without living out in the sun or tanning beds). Our WCC nurses How I Got Tan In 2 Weeks