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 Tanning from the inside out = Highly Dangerous and Illegal! Many products advertised on social media platforms promising a tan from the inside out or a tan without sun such 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 50 Weeks on Melanotan2. Used to be Type 1 and never able to tan. Have never felt better! Beard color change is epic : r Melanotan2 Melanotan II (Tan Jabs): Why They're Not Worth The Risk