Frequency specific (microcurrent) therapy (FST) is the practice of introducing a mild electrical current transdermally into an area of soft tissue. The practice is more than one hundred years old beginning with the evolution of electrotherapy. The frequencies are generated electromagnetically and have been applied both direct (transdermal onto the skin) and transmitted through air by radio waves. We could say the first proponent to prove a mechanism of specific frequencies was Raymond Royal Rife. Rife reported that a 'beam ray' device of his invention could destroy the pathogens.[Rife claimed to have documented a "Mortal Oscillatory Rate" for various pathogenic organisms, and to be able to destroy the organisms by vibrating them at this particular rate. According to the San Diego Evening Tribune in 1938, Rife stopped short of claiming that he could cure cancer, but did argue that he could "devitalize disease organisms" in living tissue, "with certain exceptions".
Georges Lakhovsky (born Georgei Lakhovsky; Russian: Георгий Лаховский; 17 September 1869 – 31 August 1942) was a Belarusian-French engineer, scientist, author and inventor. His controversial medical treatment invention, the Multiple Wave Oscillator, is described as having been used by him in the treatment of cancer.

Reently, the application of Frequency Specific (transdermal) Microcurrent has been shown in clinical studies to help re-establish the injured tissue’s natural electrical charge that becomes disrupted when it has been injured. By re-establishing the electrical charge the tissue is enabled to heal on a cellular level.

This course examines the history of FST, explains exactly what 'frequency' means electronically, and offers a novel and unique approach to choose frequencies for transdermal application. The author, Dr. Charles McWilliams, has been credited as the father of Frequency Specific Therapy, with his introduction of the Jade Frequency Generator for physical therapy and esthetics since 1986.