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 Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Don't risk using tanning products containing melanotan Therapeutic Goods Administration (TGA) 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 as injectable Melanotan II is the product that's been dubbed the "Barbie drug" on social media, and promises to give users a tan without the sun but it can have serious side effects including, in rare cases, Melanotan II Erectile Dysfunction Studies: What Early Research Shows and Practical Realities