Yellow Cat can you explain further what you mean by treating using microcurrents? Are you taking about FSM (Frequency Specific Microcurrent) or classic rifing via Hz to Mhz?
I'm not sure what you mean by FSM. I live in Europe and from what I found there are two companies here with many years of experience in this field:
I use Imedis device, it has two modes of operation:
1. Electrodes are attached to both feets, hands and head and some very small current is pushed through the body (according to their website it's 10Hz to 500kHz)
1 meter long antena is put along the body so it must works via electromagnetic radiation.
There are many other companies and devices available in Europe for treatment, recently it's getting crazy popular: there are like dozen of therapeutic centres in my area using such devices.