Melanotan II (Tan Jabs): Why They're Not Worth The Risk Melanotan Nasal Tanners Before and After Turbo Tan Star 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 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 2 Tanning Nasal Spray 2021 Does it work? Side effects? My review.