Magnesium sulfate / potassium sulfate / sodium sulfate
"Reviews said that this tasted like salty cherries. Being the salt fanatic I am, I thought I'd enjoy this concoction. It smelled pleasant and looked like water which further tricked me into thinking it wouldn't be bad at all. WRONG!!! The first gulp I took was torturous, sending a cringe down my entire body and leaving the worst taste in my mouth and making me dread the rest of it. I added a straw, which made it more bearable, but I also cut up some lemons and took a big ol' bite of it after each chug to erase the unbearable bitterness. 2nd round of this, I almost couldn't bring myself to drink it. I added lemonade mix, didn't help, and was making me gag. But it emptied me out GREAT which is why I give it a 6"