Moved into the under-study tier (from a prior mis-flattening): the skin-impedance substrate is real and the doctrine is not physically refuted, but it has not been shown above placebo. Narrow NMPA/CE allergy registrations exist (market access, not efficacy).
Origin & lineage
MORA (Morell & Rasche, Germany, 1977); BICOM; IMEDIS (Russia).
Claimed mechanism
The body emits pathological electromagnetic 'information'; the device inverts and returns it.
Plausibility
Weak to implausible mechanism; the skin-impedance measurement itself is real.
Evidence — grade E
Austrian AIHTA HTA (2009): of the acceptable trials, none above placebo. (One source graded C on the existence of small low-quality studies; reconciled to E.) Substrate real and not physically refuted → placed under-study, not contradicted.