How TO Laser Hair Removal Machine Wavelength?

Now Laser Hair Removal has been the majority of women the most acceptable medical beauty project, the so-called now does not remove hair, summer Kiwi, everyone like their own smooth jade, hair removal machines have a lot, see dazzling, in the end, what kind of laser hair removal effect is good? Best for me? Let's take a look at what hair removal machines are out there, and what are the differences.

In the first figure, the band comparison of various hair removal lasers, it can be seen that each machine is not the same band.

1. Long pulse ruby laser:

The wavelength is 694nm, which is the shortest wavelength of a hair removal laser in clinical practice. The laser energy is easily absorbed by the melanin in the epidermis leading to relatively more adverse reactions, so it is most suitable for patients with black hair and fair skin. It is not suitable for the darker skin in the yellow race, and the pain is more obvious that it may burn.

Suitable for: patients with dark hair and fair skin

Comments: The oldest hair removal instrument, was basically eliminated oh. It is mostly used in beauty salon hospitals in early 2000 and is basically invisible on the market at present.

2. Long pulse alexandrite laser:

With a wavelength of 755nm, it is the most widely used laser hair removal equipment in clinical practice, suitable for all parts of hair, especially for special parts such as lips and hairline, and easy to operate. The selectivity for skin color is relatively low, the adverse reactions are slight, and the reaction of erythema papules after surgery can be alleviated by cold application, which is a treatment device with a high safety factor for hair removal treatment at present.

The current hot picosecond (alexandrite laser) wavelength is also 755, but this 755 is not 755, so picosecond is not hair removal.

3. Long pulse width Nd:

YAG laser: wavelength 1064, proved to have an obvious hair removal effect, especially coarse black hair. In addition to edema and pain after treatment, the incidence of other adverse reactions such as pigment changes is very low, especially for dark-skinned patients.

Suitable for: thick black hair

Comments: YAG is a Yttrium aluminum garnet as a laser generator, wavelength 1064, suitable for people with light skin and deep hair, few people currently use the instrument to do hair removal.

Superpicosecond is also wavelength 1064, but not long pulse width, so q1064 (subpicosecond) cannot be used for hair removal.

4. Intense Pulsed Light (IPL) :

It is a non-continuous, multi-wavelength combination light source, which is essentially an incoherent ordinary light rather than a laser. The wavelength is 500 ~ 1200nm. Using the synergistic effect of electric energy and light energy, the heat energy of electric energy is concentrated in the hair follicle and the hairy papilla, and the heat energy of light energy is concentrated on the hair shaft so that the hair shaft and the hair follicle are destroyed to achieve the effect of hair removal because it is a wavelength, the selectivity is worse than the laser. He hesitates that Asians have darker skin than Caucasians, and IPL is prone to hyperpigmentation or hypopigmentation. However, the pain degree is relatively small during treatment, and the operation is fast and convenient, the depth of action can be adjusted through the choice of filter (645,695,755), and the treatment cost is low. At present, informal medical institutions, such as personal studios or beauty salons, basically choose to use photon hair removal methods to expand customers, a few dollars hair removal experience, generally choose cheap beauty salons without medical qualifications version of the so-called IPL hair removal equipment.

Compared with all hair removal methods, IPL requires the longest hair removal time, usually about 6-12 times.

5. Semiconductor laser:

Semiconductor laser hair removal machine is one of the most clinically used laser hair removal systems, with a wavelength of 800nm or 810nm. In terms of wavelength, the light absorption of hair follicle melanin in this band is relatively strong, which can effectively destroy hair follicles. Epidermal melanin has less absorption of semiconductor laser energy, so it has advantages for hair removal treatment of dark skin.

The current mainstream hair removal methods and clinical applications are down, the effect is obvious, and the customer experience is better.

The laser hair removal machines mentioned above all require protective glasses to avoid eye damage. Recommend our laser protective glasses.

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