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 Melanotan peptide might seem like the cool thing to doit makes you look tan., But these unregulated injections come with real risks., They can cause unpredictable skin changes, including darkening of Nasal tanning sprays linked to skin cancer, trading standards officers warn Consumer affairs The Guardian The "Barbie Drug" Has a Dark Side To tan or not to tan Atlantic Dermatology & Laser