What Is Laser Hair Removal And How Does It Work?

Laser hair removal is a non-invasive method of reducing unwanted hair and has come of age and popular. The work principle is Selective Photothermolysis. The Laser emits a pulse, which travels through the skin and is absorbed by the melanin in the hair, the light skin around it reflects the light. The lasers then heats up the hair's shaft and root, destroying it without affecting the skin or follicle. Then the hair is prevented to regrow any further. Each type of laser machine emit the different wavelengths and they are used for different targets. The melanin is especially effective at absorbing shorter wavelengths, so, the longest light wavelengths are used for treating with very dark skin, the shorter wavelengths are for light skin tones.

There are three different stages in the life of a hair, the Growth Phase (Anagen), the Resting Phase (Catagen) and the Falling-out Phase (Telogen). At any given time, about 85% of your hair is in the Anagen. It worth noting that, the hairs are affected by the laser only during the Anagen. The laser can heat up and destroy the hair because the follicle is closest to the skin and the laser can reach the follicle during the Anagen. The other of hair phases are beyond the stage. The laser light must to be on long enough to heat the hair, but not too long to allow that heat to spread to the surrounding skin causing damage. So, it is more difficult to avoid injuring the surface of the skin while treating the hair for the dark skin.

What Is Laser Hair Reduction And How Does It Work?
How Does IPL Work?

 

IPL Hair Removal is similar to lasers. However, IPL is an irregular pulsed beam of electromagnetic radiation in a broad spectrum of light wavelengths that incorporates many colors of light at once and lasers use one single wavelength of light. This is mean that an increased risk of burns, blistering and cause pigmentation with misuse than laser hair reduction.

How Does ELOS Laser Work?

ELOS Hair Removal is simultaneously harnesses the power of both bi-polar Radio Frequency (RF) and optical energy (either Laser or IPL). It's claim to fame is that ELOS has proven to be able to provide long term hair reduction for all skin and hair types including tanned skin, white, blonds, redheads or grey hair. During the procedure, the target is preheated by using Lasers or IPL, which creates a thermal path on which the RF travels. RF is delivered directly to the hair follicle, which can not further conduct RF. The build up of current density, results in the hair follicle being terminally disabled and denatured. RF is colour blind so it target the germinative part of the hair follicle rather than the melanin found in the hair shaft, or hair bulb.

Ultrasonic Hair Removal

use pure ultrasound to remove all hair colours permanently and works for dark skin stone. It is also ideal for removing hair on sensitive or pigmented areas such as eye brows, ears, nose, nipple, upper lip. An ultrasonic head is used to focus the acoustic energy directly into the hair shaft, channeling ultrasound energy precisely to the hair root, where the energy is converted into heat. As a result, the hair root's temperature rapidly exceeds the level that is required to cause long-term damage to the hair's re-growth mechanisms.

In 2013, Applisonix disappeared from the stock market. Their website is no longer in operation and all promotional material has been removed from the web.


 

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