Laser Q Switch
It is the gold standard method for tattoo removal, which determines excellent and predictable results with good safety for the patient. Using this method, high-power laser pulses enter the skin in a very small fraction of a second and target the natto pigments.
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After the tattoo pigment fragments are fragmented by the laser, these fragments are provided to skin macrophages, and after the macrophages swallow these fragments, they are removed from the environment and removed by the lymphatic system.
During the current years, many techniques have been invented and used to remove tattoos, such as dermabrasion, solar abrasion, freezing, carbon dioxide laser, surgery, etc. But the use of Q-switch laser with low side effects and high impact has created a revolution in tattoo removal in the world and has influenced other old methods.
There are many colored compounds in different carriers for tattoos, these materials can be plant or chemical The exact reason why the tattoo remains in the skin is not yet known, but apparently these substances remain in the dermis inside fibroblast cells, macrophages and histiocytes for a long time, but if a tattoo is injected into the surface layer of the skin, it is removed and fades simultaneously with the periodic replacement of the epidermis.

Using a Q-switch laser, a large amount of converging light energy enters the skin in nanoseconds and selectively targets a certain color depending on the laser wavelength. The advantage of this method is that only the colored parts related to the laser wavelength entered into the skin are targeted, and the peripheral tissues remain safe from burns.
There are three Q-switch lasers with different wavelengths and different penetration rates and different color absorption to remove tattoos.
Ruby laser with a wavelength of 694 nanometers and a pulse duration of 28 to 40 nanoseconds with minimal penetration into the skin. Alexandrite Q-switch laser with a wavelength of 755 nanometers and a pulse duration of 50 to 100 nanoseconds.
Q-Switch ND Yag laser with wavelengths of 1064 and 532 and pulse duration of 5 to 10 nanoseconds. height="150" srcset="http://drhamidvahidi.com/wp-content/uploads/2017/08/images-1-150x150.jpg 150w, http://drhamidvahidi.com/wp-content/uploads/2017/08/images-1-85x85.jpg 85w, http://drhamidvahidi.com/wp-content/uploads/2017/08/images-1-80x80.jpg 80w" sizes="(max-width: 150px) 100vw, 150px">
The last laser is preferred in terms of wavelength and fluence and less damage to the epidermis to remove blue and black tattoos.

As it was said before, the Q-switch laser is the most ideal laser for tattoo removal, and its mechanism is to fragment the pigments and ink particles of the tattoo with the help of strong waves of light that are emitted from a very small person. And the tattoos fade little by little.

The method of disposal of these pieces is either through the lymphatic system or through the epidermal layer of the skin. The size of the tattoo ink pieces is between ten to one hundred nanometers and they are generally placed at a depth of 1.1 and 2.9 millimeters. During laser treatment, steam and intracellular bubbles are created, which is the reason for the whitening of the lesion and is temporary. be.

There are many variables for the effect of laser on tattoos, such as the presence of colors other than black and red, laser surface more than 30 square centimeters, the presence of a tattoo on the leg or foot, less than a year has passed since tattooing, treatment intervals of less than six to eight weeks, and darkening of the tattoo after laser treatment, which have a negative effect on the treatment and prognosis of tattoo treatment. have a direct effect.
A newer method for more effective tattoo treatment is the simultaneous use of ultrapulse carbon dioxide laser and Q-switch nd-yag laser.

The result is that Q-Switch lasers with selective targeting of colors and based on the phenomenon of optical degradation effectively treat amateur, specialist and traumatic tattoos without causing scars, burns and severe discoloration
They play a role. Newly, lasers with a wavelength of picoseconds have entered the market, which have great power in uncomplicated tattoo treatment.