Professional Iontophoresis machines don't have an electric fence effect!
There are numerous iontophoresis machines out there, giving you a great !!BUZZZZ!! everytime the current flow is broken, when you try to regulate the current, when you want to end an iontophoresis session or even when you're about to start the treatment, while taking out hands and feet of the treatment tubs or at the end of the treatment session for automatical switching.
Although it is not dangerous at all, this electric fence effect is really annoying and caused by either a poor knowledge, an old technology or simply a cheap device design.
OUR RECOMMENDATION: For most effective Iontophoresis treatments, we recommend our Pulsed Current models, using the newest, finest and smoothest current form available at the moment.