Few years back, these bath salts were considered legal, and were conveniently available departmental stores as 1p-lsd vendor. They are now labeled as “illegal” in many countries including the USA, therefore they are sold clandestinely.
Bath salts are used as drugs in many ways. These are taken orally, inhaled or are injected. Usually they are in foil packing. These are sold covertly with different names, like ivory wave, white lightening, zoom, purple wave, red dove, blue silk, cloud nine and many other names of the same sort.