What is the principle of picosecond? What are the hazards of picosecond?

Have you heard of picoseconds in your life? Do you know about picoseconds? Today, let's learn about it together. What is the principle of picoseconds and what are the hazards of picoseconds? If you also want to know, let's learn together.

As a new energy source for treating skin diseases, picosecond laser has an ultra-short pulse width of picosecond level (≤10ps). It was certified by the US FDA in 2012 and used in the treatment of skin diseases. Unlike the traditional selective photothermal effect, the main effect of picosecond laser is photomechanical effect, not photothermal effect. When picosecond laser acts on target cells, it can generate "mechanical waves" on the target base. The high energy generated instantly by this wave vaporizes the cells, and the pigment particles in the cells are completely shattered into dust state, which can be better taken up and metabolized by antigen presenting cells, or change the physical properties of some pigment particles to make them non-colorable. At the same time, due to its short pulse width, the damage to surrounding tissues is reduced, and the risk of stimulating melanin regeneration is also significantly reduced.

1. Depigmentation, which is the opposite of pigmentation, is when the area under operation has too little pigment and appears whiter, which is called depigmentation.

2. Pain Picosecond laser surgery also produces mild to moderate pain, which can generally be tolerated by applying anesthetics. Since Picosecond laser is still a newcomer, its martial arts and personal qualities need to be further understood. People in the industry have gradually emerged from the period of blind hype and following the trend, and have gradually matured and stabilized.

3 Pigmentation is the so-called anti-blackening, which occurs from 0 to 20%. Especially in the operation of melasma, inflammatory pigmentation often occurs due to poor energy control.

4. Unevenness. Picosecond laser itself stimulates the regeneration of collagen fibers in the body. Therefore, be careful to avoid using collagen before and after the operation to prevent excessive accumulation of collagen fibers under the skin, leading to large-scale growth of sweat glands, nerves, tissues, and stratum corneum in the skin, resulting in pits, accumulation and folding. So you should pay more attention here.

How long can picoseconds last?

When we say how long a picosecond treatment can last, "a time" does not refer to the number of picosecond treatments, but to a picosecond treatment course. A picosecond treatment course usually lasts 3 to 4 times. If the skin problem is serious, more times are needed. After a course of treatment, the effect of picosecond can last for 12 months. The effect of a picosecond treatment usually lasts for 3-6 months. The interval between each picosecond treatment is usually about 1 month.

What is the difference between picosecond freckle removal and laser freckle removal?

There is a professional term called pulse width when emitting laser, which means the duration of one emission. If the duration of one emission of my laser is at the picosecond level, it is called picosecond laser, abbreviated as picosecond. In other words, picosecond actually belongs to laser. It is a special type of laser, not a new technology independent of laser. Because its pulse width, that is, the emission time is very short, its energy is emitted instantly, so its peak power is very high, so its pigment blasting effect will be very strong, so the tattoo removal and pigment removal effect is very good. Because it is an energy that comes out in a short time to stimulate the epidermis or dermis to produce some reactions, it will cause some rearrangement and regeneration of collagen, which has the effect of skin rejuvenation, which is different from previous lasers.