Hello lorrimoris and All,
From Wiki:
Excerpts:
Permanent hair removal
For over 130 years, electrology has been in use in the United States. It is approved by the FDA. This technique permanently destroys germ cells responsible for hair growth by way of insertion of a fine probe in the hair follicle and the application of a current adjusted to each hair type and treatment area. Electrology is recognized by the FDA as the only permanent hair removal method.[18]
Permanent hair reduction
A 2006 review article in the journal "Lasers in Medical Science" compared IPL and both alexandrite and diode lasers. The review found no statistical difference in effectiveness, but a higher incidence of side effects with diode laser based treatment.
Hair reduction after 6 months was reported as 68.75% for alexandrite lasers, 71.71% for diode lasers, and 66.96% for IPL. Side effects were reported as 9.5% for alexandrite lasers, 28.9% for diode lasers, and 15.3% for IPL. All side effects were found to be temporary and even pigmentation changes returned to normal within 6 months.[19]
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Modalities
Three methods or "modalities" are used in electrology. Galvanic, thermolysis, and blend all have their own merits, and one method is not better than another. The success depends on the skill of the electrologist, the type of hair being removed, the condition of the skin and the pain threshold of the client. All three methods, when properly performed, can be thorough at destroying the hair matrix cells, and leaving follicles incapable of regrowing hair.
Galvanic
This modality is named after Luigi Galvani and uses a person's body as an electrolytic cell. Galvanic electrolysis was first reported in the medical literature by ophthalmologist Charles Michel in 1875 to remove ingrown eyelashes in patients with trichiasis.[1] A galvanic epilator is essentially a positive ground power supply that delivers 0-3 milliamperes through the body. The follicular probe is the cathode of an electrolytic cell. Sodium hydroxide formed at the cathode by the process of chemical electrolysis kills the hair matrix cells. Modern galvanic epilators automatically adjust the voltage to maintain constant current.
Thermolysis
Another method is known as thermolysis, RF, shortwave or diathermy. Thermolysis was developed in the 1920s and first reported in medical literature by Henri Bordier.[2] A thermolytic epilator is essentially a radio transmitter, usually with an output of about 0-8 watts at a frequency of 13.56 MHz. RF energy emanates from the probe tip to tissue within about a millimeter. Thermolysis works by heating the hair matrix cells to about 48 to 50 °C (118 to 122 °F), causing electrocoagulation.
Blend
Galvanic and thermolysis are often combined in a method known as blend, developed by Arthur Hinkel in 1948, which uses both RF and direct current, combining many of the advantages of galvanic and thermolysis.[3]
Cheers, Neal
+1 mph Faster
From Wiki:
Excerpts:
Permanent hair removal
For over 130 years, electrology has been in use in the United States. It is approved by the FDA. This technique permanently destroys germ cells responsible for hair growth by way of insertion of a fine probe in the hair follicle and the application of a current adjusted to each hair type and treatment area. Electrology is recognized by the FDA as the only permanent hair removal method.[18]
Permanent hair reduction
- Photoepilation
- Laser hair removal (lasers and laser diodes): Laser hair removal technology became widespread in the US and many other countries from the 1990s onwards. It has been approved in the United States by the FDA since 1997. With this technology, light is directed at the hair and is absorbed by dark pigment, resulting in the destruction of the hair follicle. This hair removal method sometimes becomes permanent after several sessions. The number of sessions needed depends upon the amount and type of hair being removed. Equipment for performing laser hair removal at home has become available in recent years.
- Intense pulsed light (high-energy lamps)
- Diode epilation (high energy LEDs but not laser diodes)
A 2006 review article in the journal "Lasers in Medical Science" compared IPL and both alexandrite and diode lasers. The review found no statistical difference in effectiveness, but a higher incidence of side effects with diode laser based treatment.
Hair reduction after 6 months was reported as 68.75% for alexandrite lasers, 71.71% for diode lasers, and 66.96% for IPL. Side effects were reported as 9.5% for alexandrite lasers, 28.9% for diode lasers, and 15.3% for IPL. All side effects were found to be temporary and even pigmentation changes returned to normal within 6 months.[19]
=======================
Modalities
Three methods or "modalities" are used in electrology. Galvanic, thermolysis, and blend all have their own merits, and one method is not better than another. The success depends on the skill of the electrologist, the type of hair being removed, the condition of the skin and the pain threshold of the client. All three methods, when properly performed, can be thorough at destroying the hair matrix cells, and leaving follicles incapable of regrowing hair.
Galvanic
This modality is named after Luigi Galvani and uses a person's body as an electrolytic cell. Galvanic electrolysis was first reported in the medical literature by ophthalmologist Charles Michel in 1875 to remove ingrown eyelashes in patients with trichiasis.[1] A galvanic epilator is essentially a positive ground power supply that delivers 0-3 milliamperes through the body. The follicular probe is the cathode of an electrolytic cell. Sodium hydroxide formed at the cathode by the process of chemical electrolysis kills the hair matrix cells. Modern galvanic epilators automatically adjust the voltage to maintain constant current.
Thermolysis
Another method is known as thermolysis, RF, shortwave or diathermy. Thermolysis was developed in the 1920s and first reported in medical literature by Henri Bordier.[2] A thermolytic epilator is essentially a radio transmitter, usually with an output of about 0-8 watts at a frequency of 13.56 MHz. RF energy emanates from the probe tip to tissue within about a millimeter. Thermolysis works by heating the hair matrix cells to about 48 to 50 °C (118 to 122 °F), causing electrocoagulation.
Blend
Galvanic and thermolysis are often combined in a method known as blend, developed by Arthur Hinkel in 1948, which uses both RF and direct current, combining many of the advantages of galvanic and thermolysis.[3]
Cheers, Neal
+1 mph Faster
