The clinically proven microcirculation is generated by high-frequency electrical fields. However, PlasmaDerm is a certified medical product and absolutely safe. The amount of current flow is far below the permitted limit values (at 5µA and thus well below normal mains current of 16A). There are no high temperatures (below 40 ° C), so there are no burns and no tissue heating. Cardiac currents are not stimulated, and the treatment is absolutely painless.