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, Doctors have warned people not to use so called 'Barbie Doll' tanning injections bought over the internet Irish Mirror Brits buy 17 illegal 'Barbie' tanning injections that 'lead to kidney failure, brain swelling and hallucinations' Glowup shortcuts are trending again, but doctors say the Barbie drug comes with real medical red flags. Unregulated, unapproved, and could have serious sideeffects is any tan worth that risk?, Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn