Melanotan II (Tan Jabs): Why They're Not Worth The Risk JLE European Journal of Dermatology Eruptive naevi and darkening of pre existing naevi 24 h after a single mono dose injection of melanotan II 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 Selank TP 7 Nasal Spray Research Peptide Pure Bio Labs Mt 2 Nasal Spray Before and After TikTok