Melanotan Tanning Peptides: Safe Use, Side Effects & How It Works Scientifically I accidentally undid years of skin work and didnt realize it until it was too late., At the beginning of November, I started taking melanotan 2 and honestly?, I loved it., My tan deepened Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Imagine just wanting to be jacked and tan and you end up like this? Melanotan II is a peptide that increases the melanin in your skin and can give men a boner that