Nuh uh.
1) The water is voltage-ized so that it pulls out only the bad chemicals from your body, while leaving all the good chemicals.
2) You see sweat come through your skin from the inside of your body. It follows that your skin is permeable to all chemicals from the inside of your body, and these chemicals are just waiting to be drawn out by electricity/magnets.
3) Some "scientists" talk about the decomposition of the electrodes into colored ions, changing the color of the water. The also claim that corrosive sodium hydroxide forms, which causes chunks of your skin to come off. These charlatans forget that this is a completely healthy and natural process, with just salt, water, and God-given electricity.

You can already see the water start to turn yellow when he dunks the "array" or whatever the Hell it is in there.

What quackery.