For rejuvenation, CO2 (carbon dioxide) and erbium lasers are used, the radiation of which is mostly absorbed by water. They differ from each other in wavelength and level of energy absorption, which determines the technology of the procedure. CO -2 devices are used for ablative rejuvenation, and erbium devices - for non -ablative.
With ablative rejuvenation, the laser beam acts not only on the inner layers of the skin, but also on the superficial layers. By non -ablative - the laser penetrates deep into the tissue, but does not damage the surface of the skin. This may be due to the different laser wavelengths, as well as the fact that the epidermis contains less water (10-15%) than the inner layer of the skin (70-75%).
Carbon dioxide lasers have the longest wavelength of any medical laser available at 10, 600 nm. Such radiation is well absorbed by water, so it responds even with small amounts of water contained in the epidermis. Therefore, ablative techniques are performed with the help of such lasers, which are capable of affecting the surface layers of the skin.
The wavelength of erbium lasers ranges from 1064 to 2940 nm. The clinic uses a Palomar Lux 1540 laser, its wavelength is 1540 nm, and the depth of penetration into the tissue is up to 2 mm. Such radiation is poorly absorbed by water and therefore through the epidermis without damaging it. The action of the laser begins already in the inner layer, where there are enough water molecules to interact with the radiation. Palomar Lux 1540 is used for fractional photermolysis.
Why is laser rejuvenation a safe and effective procedure?
Modern CO2 and erbium lasers act in a fractional manner, i. e. the beam is divided into micro beams in the form of a grid. Due to this, only 20% of the surface is damaged, and the recovery process is launched throughout the skin volume. This effect minimizes the possibility of thermal damage, unpleasant consequences in the form of scars and scars, and also increases the rate of tissue repair.
As a result of the action of the laser, a freezing column is formed, in the case of ablative technology - open, non -ablative - closed. These columns are located at a certain distance from each other due to the action of fractions. Cells around the coagulation zone undergo heat shock, which activates metabolic processes and the production of new cells. Thanks to this, a lifting effect is achieved, the skin is rejuvenated.
For whom is ablative rejuvenation appropriate?
Ablative rejuvenation is a very effective method of solving problems such as superficial wrinkles, pigmentation, and decreased skin elasticity and firmness.
The laser works primarily on the top layer of the dermis, does not penetrate deeply, but affects the surface layer. Thanks to this, the skin is renewed to the entire depth of penetration of the beam (up to 1 mm) and obvious correction of superficial imperfections. To achieve a good effect, only 1 procedure is required. The recovery period after the procedure is 5-7 days.
Ablative rejuvenation, particularly DOT therapy, is ideal for those who want to get quick results with a minimal recovery period.
For whom is non -ablative rejuvenation appropriate?
Non -ablative rejuvenation is also one of the most effective techniques for removing wrinkles, lifting skin, rejuvenating, improving skin quality, treating pigmentation and other skin imperfections.
Laser surgery only on the inner layer leads to the fact that the recovery period after the procedure is almost absent and only 2-3 days. To achieve results similar to ablative rejuvenation, a larger number of procedures will be required, usually 3-4. Due to the deeper penetration, a complete tissue restructuring occurs, which provides a significant lifting effect.
Non -ablative rejuvenation, particularly fractional photothermolysis, is ideal for those who want to obtain significant results without intensive exposure and recovery periods.