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Cosmetic electrotherapy is a range of beauty treatments that uses low electric currents passed through the skin to produce several therapeutic effects such as muscle toning in the body and micro-lifting of the face. It is based on electrotherapy, which has been researched and accepted in the field of rehabilitation, though the "scientific and medical communities have tended to sideline or dismiss the use of electrotherapy for healthy muscles".

The use of electricity in cosmetics goes back to the end of the 19th century, almost a hundred years after Luigi Galvani discovered that electricity can make the muscle in a frog's leg twitch (see galvanism). Subsequent research in electrophysiology has been carried out by people such as Robert O. Becker, Dr Björn Nordenström, a former chair of the Nobel Selection Committee for Medicine, and Dr Thomas Wing, who invented some of the first micro-current devices.


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Treatments

The are four main types of treatment, that differ in the type of current they use (see Comparison table, below), including:

  1. Galvanic treatment
  2. Neuromuscular electrical stimulation (NMES) (also known as Faradic treatment)
  3. Micro-current electrical neuromuscular stimulation (MENS)
  4. High-frequency treatment

Galvanic treatment

Galvanic treatment in the beauty industry has been described since at least the 1970s and earlier. Sometimes called galvanism, the treatment aims to improve the skin in two ways: (1) cleansing: a process called desincrustation, and (2) nourishing the skin condition, through an electro-chemical process called iontophoresis (also called ionisation). This is achieved by the application of a small, constant, direct current. The treatment works on the principle that charged ions in the skin are either attracted or repelled from the electrodes, resulting in certain chemical effects.

Galvanic treatment are often used on the face (facial galvanic treatment) and on the body to treat cellulite (galvanic cellulite treatments).

Faradic treatment

Faradic treatment has also been described in the beauty industry since the 1970s and earlier. The treatment tones the muscles by repeatedly contracting them with the electric current, resulting in their firming and toning, and an increase in muscular metabolism aims to remove waste products more readily. Faradic treatments are generally used on the face and body, and work by contracting muscles with a short pulse of interrupted direct current.

The treatment is also called neuromuscular electrical stimulation (NMES), and some of the manufactures who produce the equipment use their own terms, for example, Slendertone calls it electronic muscle stimulation, or the treatment is called after the name of the manufacturer, such as Ultratone or Slim Master.

Microcurrent treatment

Microcurrent treatments (MENS) have been around since the 1970s in medical applications and are distinguished by their use of micro-ampere currents (i.e. millionths of an amp) which are hardly perceptible, but mimic the body's own bio-electric currents. The treatment is designed to soften wrinkles and rejuvenate skin, including skin damaged by sunburn, acne, stretch marks, cellulite and scarring.

This increased ATP also energizes the facial muscles, similar to how exercise energizes the muscles of our bodies. Unlike anywhere else on the body, the facial muscles are directly connected to the skin, so the result of energizing the muscle is often an improved, lifted appearance. When used on the face, the treatment has become known as a "non-surgical facelift" and "facial lifting".

Microcurrent treatment works by passing a very small direct current through muscle tissue to stimulate the Golgi tendon organ.

Different microcurrent characteristics, particular the frequency and shape of the changing voltage (waveform), have different effects on the tissue.

High-frequency treatment

High-frequency treatment uses low-current high-frequency alternating currents, delivered via a glass electrode. Because the high frequency current converts some of the oxygen in the air into ozone, the treatment has a germicidal action, and is also drying and warming. Consequently, the treatment is used to aid healing and also to help desquamation (the skin's natural exfoliation) and stimulate sweat and sebaceous glands.

At up to 250,000 Hz frequency, the hollow glass electrode behaves like a glow discharge tube and is sometime called a "violet ray" or "violet wand" (though the colour depends on the gas in the glass). Two electrodes are not required and sparking may occur when the electrode is close to the skin. Because the effect may be pleasurable, similar devices are used in erotic electrostimulation.


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Treatment and current

The characteristics of the treatment current include: (a) whether it is (direct or alternating), (b) current frequency, (c) size of the current (all very small), and (d) the duration and shape of any pulses.

Comparison

Notes

  • Desincrustation - A skin cleansing process that softens and emulsifies hardened follicle sebum.
  • 1 Amp = 1,000 milliAmps (mA) = 1,000,000 microAmps (?A)
  • 1,000 Hz (cycles per second) = 1 kHz

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Terminology

The origins of the terms "galvanic" and "Faradism" are described in the medical journal, The Lancet, in 1851. A note reads:

It is noted that:

Source of the article : Wikipedia



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