This guy injected himself with a drug called Melatonan II for 5 months. Here's his before after. : r pics Melanotan II injection resulting in systemic toxicity and rhabdomyolysis It doesn't take much to fall down the Barbie Drug rabbit hole. In self tanner subreddits and on TikTok Shop, the tanning injectionaka Melanotan IIis marketed as a self tanner alternative that works by What Happens to Your Body if You Take Too Much Melatonin?