For those who have never experienced a detox foot bath before it can be a little intimidating.  But in fact there is very little to be concerned about!  There are variety of elements that can added to warm water (epsom salt, apple cider vinegar, bentonite clay, essential oils, etc) to help draw out toxins.  

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Then a low-voltage electric current is run through the water using an ionizing machine, which creates positively charged particles called ions. These ions are said to attract and neutralize negatively charged toxins in your body, pulling them out of your feet and into the water.  the color of the water may change drastically due to the chemical reaction with the electrical current but it's nothing to be alarmed about!