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Everyone has long known that laser hair removal made a breakthrough in the field of aesthetic services, and remains the most popular and sought-after procedure to date. After all, unwanted hair on the face and body brings discomfort both to women, and many men in the modern world.
The first commercial laser in the world (not for laboratory scientific experiments, but for sale to practitioners) was produced by PALOMAR in 1997. It was a ruby ​​laser for hair removal named “EpiLaser”. It was absorbed exclusively by melanin, and could only be used on very light skin with dark hair, and using it on the skin of darker photo types led to burns and other complications, so the ruby ​​laser, having a wavelength of 694 nm, was quickly abandoned.

In the same 1997, PALOMAR patents a new development – the use of a diode laser for hair removal and sells this Patent for 15 years to the Lumenis company. Diode laser for hair removal Lightsheer for many years was the bestseller hair removal laser in the world. Diode laser or semiconductor (as semiconductors act as the amplifying medium of the device), perhaps, remains the most widespread technology among lasers for epilation.

The term the “gold standard” most often is encountered at the mention of a diode laser. 808-810 nm – the classic wavelength in laser hair removal, provides deep penetration, has a moderate level of melanin absorption, which makes it safe for dark skin types. After years, many companies, developers began to use this technology in the creation of their lasers for hair removal. And today there is a huge choice of lasers from different manufacturers, differing in type, wavelength, power, pulse frequency, cooling system and other technical characteristics.

Alexandrite laser – with a wavelength of 755 nm, a solid-state laser, the working core of which is the Alexandrite crystal. The more powerful energy of absorption by melanin, and the most superficial effect makes it ideal for a wide range of hair types – especially light and thin superficially located. Since this type of radiation is actively absorbed by melanin, experts call for photo types to be limited to I-III due to the significant risk of burns and pigmentation. And since the laser is more powerful, and therefore painful, external cooling of the skin is required during the procedure.
Another laser used to remove unwanted hair was a neodymium laser with a wavelength of 1064 nm. For people with dark skin (IV-VI photo type), epilation using a neodymium laser was a real salvation because the use of other lasers was impossible. The main difference of the neodymium laser from the rest is that it affects not the melanin contained in the hair, but the hemoglobin of the vessels that feed the hair follicle. As a result, of the absorption of laser energy by hemoglobin, the vessels and the bulb stick together, without being fed, they die. That is why the neodymium laser easily copes with red, light and grey hair, which is devoid of melanin and therefore other lasers do not see them. But still due to the low absorption coefficient by melanin, the neodymium laser is not as effective as a diode or alexandrite laser. Therefore, it has found application in other areas of aesthetic medicine, where the hemoglobin is the target cell, and it is used for depilation extremely rarely.

But what could be better than a combination of all known epilation lasers today?

Recently, three-wavelength lasers appeared on the hardware cosmetology market (three-wave, hybrid, MIX-lasers and other synonyms).

The three-wave laser combines Diode 808nm, Alexandrite 755nm, and Neodymium 1064nm lasers. The energy of all waves is produced at the same time, in one flash and affects the different depth of the follicles, so this laser is the most effective one in any zones.

The laser with a combination of three wavelengths:
• Is so effective as a diode and alexandrite laser:

• Is effective for low melanin hair – red, blond and even grey hair, thanks to its neodymium component;

• Is allowed for exposure to dark photo types, at any time of the year, as a neodymium laser;

• Is more comfortable than alexandrite and neodymium laser;

• Is less aggressive for epidermal melanin, which reduces the likelihood of burns and hyperpigmentation.

The cooling can be contacted, as on a diode laser, which does not require additional costs for cooling from the outside, as is the case with the alexandrite and neodymium laser.
The decision on which laser to use against unwanted hair is not easy. The choice complicates the variety of devices for laser hair removal, many types, settings and modes, streams of conflicting information. In this case, three-wave lasers came to the rescue. Now no need to choose. All technologies are collected in one equipment.