Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Lipo B vs Lipo C: What's the Difference? We get this question often in clinic what's the difference between Lipo B and Lipo C, and how do you know which one to choose? Both are A Current Affair: Tanning 'Barbie drug' a danger to users, experts say The Dark Side of Melanotan Tanning Injections: My Personal Experience Revealed