For rejuvenation, CO2 (carbon dioxide) and erbium lasers are used, the radiation of which is mainly absorbed by water. They differ in wavelength and the degree of energy absorption, which determines the technology of the process. 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 deep layers of the skin, but also on the superficial ones. With non-ablative - the laser penetrates deep into the tissue, but does not damage the surface of the skin. This is made possible by the different wavelengths of the laser, as well as the fact that the epidermis contains less water (10-15%) than in the deeper layers of the skin (70-75%).
At 10. 600 nm, carbon dioxide lasers have the longest wavelength of all available medical lasers. Such rays are very well absorbed by water, so that they react with the small amount of water in the epidermis. Therefore, with the help of such lasers, ablative techniques are performed that can affect the surface layer of the skin.
Erbium laser wavelengths range from 1064 to 2940 nm. The clinics use the Palomar Lux 1540 laser, the wavelength of which is 1540 nm and the depth of penetration into the tissue is up to 2 mm. Such rays are less absorbed by water and therefore penetrate the epidermis without damaging it. The laser effect already begins in deep layers, where there are enough water molecules to interact with the beam. Palomar Lux 1540 is used for fractional photothermolysis.
Why is Laser Rejuvenation a Safe and Effective Procedure?
Modern CO2 and erbium lasers work in a fractionated manner, i. H. the beam is divided into micro-beams in the form of a grid. As a result, only 20% of the surface is damaged and the recovery process is initiated over the entire volume of the skin. This effect minimizes the possibility of heat damage, unpleasant consequences in the form of scars and scars, and also increases the rate of tissue repair.
A coagulation column is formed by laser action, with ablative technology - open, non-ablative - closed. These columns are at a certain distance from each other due to the fractional action. The cells around the clotting zone suffer a heat shock, which activates metabolic processes and the formation of new cells. This creates a lifting effect and rejuvenates the skin.
Who is ablative tapering suitable for?
Ablative rejuvenation is a highly effective method of solving problems such as flat wrinkles, pigmentation, and a decrease in skin elasticity and firmness.
The laser works mainly in the upper layers of the dermis, does not penetrate deeply, but affects the surface layer. As a result, the skin is renewed to the entire depth of penetration of the beam (up to 1 mm) and the obvious correction of superficial imperfections. Only 1 operation is required to get a good effect. The recovery period after the procedure is 5-7 days.
Ablative rejuvenation, especially DOT therapy, is suitable for those who want a quick result with minimal rehabilitation time.
Who is non-ablative rejuvenation suitable for?
Non-ablative rejuvenation is also one of the most effective techniques for removing wrinkles, tightening skin, rejuvenating, improving skin quality, treating pigment spots and other blemishes.
The operation of the laser only in the deep layers means that the rehabilitation time after the procedure is practically absent and only lasts 2-3 days. To achieve a result similar to ablative tapering, a greater number of procedures are required, usually 3-4. The deeper penetration leads to a complete restructuring of the tissue, which results in a noticeable lifting effect.
Non-ablative rejuvenation, especially fractional photothermolysis, is suitable for those who want to achieve a noticeable result without intensive exposure and rehabilitation time.