The principle of laser surgery is to use high-intensity light beam, and its specific wavelength will be absorbed by melanin in the skin, thus achieving the purpose of disintegrating melanin. In a short time, because picosecond laser can release the maximum energy, it is more accurate, faster and more penetrating to capture melanin. So some spots that nanosecond laser can't capture can also be removed by picosecond laser.

Picosecond laser to remove stains and tattoos generally requires about 3-4 treatments. This is because different levels and time of pigment will affect the therapeutic effect, and it usually takes 3-4 times to completely remove it.

The interval of picosecond laser is 3~6 months, and it is more suitable for the natural growth of skin to do picosecond laser every six months. Picosecond can be done for a long time, but the interval should not be less than 6 months, because the effect of each picosecond laser surgery is at least about two years from surgery recovery to new cell growth to stable and continuous renewal after new cell growth.

Therefore, before the new cell tissue grows and updates completely, it will bring a lot of harm and side effects to the subcutaneous cells again.

Extended data:

Picosecond laser has the following advantages:

1, the melanin clearance rate is higher.

Picosecond laser can crush melanin into tiny particles, which is more convenient for melanin metabolism and greatly improves the clearance rate of melanin.

2, melanin removal speed is faster.

Compared with the traditional Q-switched laser, the processing speed of picosecond laser honeycomb is increased by 90 times, and the color spots are instantly crushed, which greatly shortens the processing time.

3. There is no risk of going back to hacking.

Based on the rapid and powerful deterrent ability of picosecond mechanical light laser, the probability of skin thermal damage is greatly reduced, and the risk of stimulating melanin to become active again (returning to black) is relatively reduced.

4. Start the repair mechanism at the same time of freckle removal.

Picosecond laser impacts melanin, at the same time, it transmits shock wave to the deep skin, starts the repair mechanism, promotes the renewal and proliferation of collagen, and achieves the effects of whitening and rejuvenating skin and removing fine lines.

5. No harm to normal tissues.

While removing the stain perfectly, through the skin healing mechanism, new collagen and elastic fibers are produced in the dermis below the photo position, achieving the excellent effect of skin rejuvenation, firmness and synchronization.