Weird. I knew that...but my husband has been using the kosher and he's had excellent results with it. So it's the first thing that came to my head as easily found in the store. The Sea Salt was sitting on the counter. I had to suggest to him that he was using the wrong one and the Sea Salt did not give him results so he's gone back to kosher, I think.
Didn't someone also post something a few days ago about Epsom Salts as an alternative?