This juice is so good it should be illegal! Heisenberg has been a top-selling e-liquid for years now, and for good reason. "The Berg" is a completely spot-on mixture of Blue Raspberry, Blue Popsicle, and Blue Slushie, all squeezed into one 75ml bottle! This fruity and delicious juice has become an ADV (all day vape) for newcomers to vaping and veterans alike. This is the exact flavor you imagine when you think of something "blue" flavored, and it does not disappoint.