Picosecond laser refers to a laser method with a pulse width at the picosecond level, which is called picosure by most people, and the main principle of picosecond laser freckle removal is to crush the emulsion particles in the pigmentation through the laser with a pulse width at the picosecond level, and then the phagocytic cells will engulf the crushed particles, so as to achieve the freckle removal effect.
Picosecond is shorter than the pulse width of ordinary laser, under this pulse width, the light has not had time to convert into heat, it has been absorbed and expanded by the pigment tissue, which is equivalent to picosecond has 7 times the pigment breaking ability of ordinary laser, which can instantly hit the pigment more fine, can more effectively remove the pigment spots, and reduce the pigment residue, which is not easy.
Picosecond freckle removal actually refers to the use of picosecond laser to remove pigmentation. Pigmentation or pigmentation on the face can be removed by laser, which works by breaking up the pigment with the high energy of the laser, and these small pigment debris can be swallowed and metabolized by macrophages. The picosecond laser belongs to a new generation of laser equipment, with a short action time and relatively concentrated energy, which can effectively break the pigment while causing less damage to the pigment. Because the time of action is very short, the thermal effect is relatively weak and small.
Picosecond lasers have very obvious advantages.
1. Hurry up, hurry up.
Because the time of the laser action can reach picoseconds, it is really not a little faster than other lasers, maybe other lasers need to take you half an hour, and picosecond lasers only need more than ten minutes to let you finish walking.
Second, the damage is smaller, and the damage is smaller.
We usually do ordinary laser freckle removal and may have symptoms of scabbing or even molting. After doing it, some will be red, swollen and unable to go to the house, and there will be a period of allergy to any skin care products, but they still have to go to work and school, and the advantages of picosecond laser will be revealed. The picosecond has a shorter duration of action, and of course the less damage.
The picosecond laser pulse is only one hundredth of the traditional nanosecond laser, and it can be seen from the degree of damage in the surrounding ** that under the ultra-short pulse, the light energy has no time to be converted into heat energy, and there is almost no photothermal effect, so it will not hurt other healthy tissues too much, and it will not be so easy to turn black during the healing period.