Ionic Detox Cleanse Foot Spa MachineGET A RELAXING FOOT SPA AT HOME Electromagnetic waves of a specific frequency are introduced into the water. Under the action of electromagnetic waves, various substances in the water are ionized. When the body's toxins are discharged, they react with the ions in the water to produce color. Because there is a small amount of rust in the tap water, it turns light yellow after being ionized, but it has no odor and no grease. FEATURES: IONIC DETOX: