MT II or tanning beds??? #health #wellness #peptide #tanning #science 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 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 Who's tan is reay for summer. This peptide can help.