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 longer lasting than Melanotan II (MT II) Peptide Therapy Beverly Hills Melanotan (MT) II Melanocortin Receptor TargetMol Nasal Tanning Sprays linked with skin cancer and serious respiratory problems Dangerous 'Barbie drug' Melanotan II sparks crackdown on social media influencers ABC News Melanotan 2: Day 6 , Another one hour in what minimal sun we had today. , No tanning beds, just sun. , Moved down to 50mcg before sun exposure, No more side effects :) , Before & before , Well see