There is no question if Himalayan salt is the best...it is. What is in question is the authenticity of many of the offerings of the pink salt now all over the place including ebay.
I trust this company.... http://americanbluegreen.com/ This salt is the one researched in the book "Water and Salt". I'm sure the others from mines in Poland and Germany are good quality and valuable, but I want the results that were shown in the book, so I want the original. As with all good things, many are jumping on the bandwagon and selling a less than optimal salt.