Before talking about fractional laser rejuvenation, it is worth touching the argument of the aging of the skin and understanding the processes that occur in it.
Skin aging processes and their causes
The condition and appearance of the skin are determined by the renewal rate of its cells and fibers of the connective tissue, as well as by the degree of humidity of all its layers.The fibroblasts are responsible for the synthesis of collagen and elastin in the dermis.And the continuous renewal of the epidermis is guaranteed by the presence of stem cells in it, which are actively divided.
Cytokines - biologically active molecules, which regulate cellular activity and force them to work in accordance, have stimulating effects on the fabric.Cytokines determine the survival of cells, their division, growth and functional activity.These molecules are quickly transmitted from one cage to another, causing a "waterfall" of changes.
The changes related to age are due to the general slowdown of blood circulation and metabolism in tissues, a decrease in cell division, their synthetic activity.Therefore, for example, the content of collagen in the dermis, starting from 25 years, decreases at an average speed of 1% per year.The quality of the collagen is also reduced.It is attached and cannot provide the previous tone of the skin.The concentration of hyaluronic acid is reduced, on the quantity of which it depends on the level of hydration of the skin, on the activity of fibroblasts and other cells.
A further aging factor is ultraviolet radiation, under the influence in which the elastin and collagen fibers are destroyed, which ensure the elasticity of the skin, the expansion of the surface vessels with the formation of vascular stars and mesh.The protective reaction of the skin in the form of production of a further amount of melanin, an increase in the number of layers of epidermal cells causes the appearance of age spots, a heterogeneous complexion.
The result of all these internal processes are external manifestations of aging:
- Loss of elasticity and elasticity of the skin, prolapse of the soft fabrics of the face with the formation of nasolabial folds, "flies" in the area of the cheeks, outline of the blurred face;
- dynamic and static wrinkles;
- Irregular skin color with hyperpigmentation outbreaks;
- the aspect of tulangiectia;
- Reduce the level of humidity of the fabrics.
To rejuvenate the skin, we must eliminate all the above external changes.In order for the result of the fact that the anti -inated effects are long, it is also necessary to restore the normal level of metabolic processes.
The fractional laser rejuvenation procedure allows you to solve both problems as follows:
- The tissues affected by age -related changes are removed using a harmful controlled effect, which allows to preserve stem cells;
- The intensity of the harmful effect should be such as to activate the restoration of the skin, accelerate the metabolism and the cell division process.
What does the term "fractional" mean?
During the cosmetological procedure, we can remove all modified tissues.This effect is obtained, for example, during peeling, when the acid affects the entire area of the skin.In this case, it is necessary to prepare for prolonged restoration, peeling.During deep peeling there is a risk of complications: a chemical burn can live with the formation of scars.The only reason why peeling is still actively used in cosmetic salons is a slight depth of penetration of the composition.With a sufficiently superficial effect of body resources, there is enough to restore fabrics without scars and other problems.
In the case of laser effects, the continuous damage to fabrics leads to burns and related complications.Exposure to the fractional laser allows you to stimulate the update of the epidermis and the dermis without serious negative consequences, during which columns of thermal lesions are created: areas of evaporation of the microscopic tissue.The thermal exposure columns are interspersed with unchanged areas of the skin, which creates optimal conditions for healing.At the same time, the "waterfalls" of the cytokines, emerging in the outbreaks of the microdamage, spread to the entire series of epidermis and dermis, healing, rejuvenation of the skin, improving its appearance.
What is the difference between non -skilled fractional rejuvenation and rejuvenation of fractional ablation?
A characteristic of the ablative laser is that the energy of their radiation is absorbed by the water, which is in abundance both in the dermis and in the epidermis.The result of the laser exposure is the destruction of cells of both layers of the skin, a strong reduction in the dermis and the launch of the formation of a new collagen.
The ablative group of fractionary laser includes:
- fractional2 Laser with a wavelength of 10600 Nm;
- Fractional Erbio laser (Er: Yag, 2940 nm);
- Fractional Erbio laser on glass (ER: YSGG, 1790 Nm).
With their help, it is possible to obtain significant sanding of skin relief, eliminate wrinkles, hyper outbreaks and hypopigmentation.During the treatment, about 37% of the variations due to photoegging is removed.The disadvantage of ablative fractional laser is their rather aggressive effect on the fabric, which in 44% of patients with photographs II-V skin in Fitzpatrick leads to the development of post-inflammatory hyperpigmentation.
The radiation of the non -blative fractional laser does not damage the epidermis, but acts mainly on the dermis, which determines their softer and saved effect on the fabric.Neodmic laser (ND: YAG, 1440 Nm), Erbiye (ER, 1550 Nm), Tolevy Voloconny (1927 Nm) allow you to significantly improve the consistency of the skin, eliminate wrinkles.The laser procedures allow to improve the color of the skin, remove pigment stains, eliminate post-acne without a trace of 51-75% of cases.At the same time, the risk of inflammatory hyperpigmentation is almost a lower order of magnitude.In patients with a photographer III, it is only 3%, with IV-12%, with V-33%.
Picosecond Alexandrite also belongs to the non -black group of fractional laser.In addition, it has a distinctive property that determines greater efficiency and safety than other laser laser rejuvenation procedures.
The duration of the picosecond's impulse is several tens of times the time of the time necessary for the heating fabrics after exposure to the outbreak of light.The energy of the wrist is spent on the destruction of cells containing melanin, while the surrounding tissues are not heated or damaged.This allows you to use fractional non -batting fractional laser to remove age stains, wrinkles, pores enlarged at any time of the year, in patients with any type of skin without risk of complications.
The effectiveness of picosecond impulses guarantees a unique nozzle, whose lenses concentrate the energy of laser radiation in hundreds of Mikrolučej.This recalls a "traditional" fractional rejuvenation, but the impact in each microlite is not thermal, but a photomechanical.At the center of the impulse, this is a photomechanical "pressure" on the strongest cells than in the edges.For this reason, the "waterfalls" of the cytokines rush deep into the skin, in the dermis and not on the sides - according to the epidermis.It is there that the processes of regeneration, renewal and restoration of fabrics are launched.
Due to the high speed of the laser in a short period of time, it is possible to "elaborate" a significant area of the skin.It is no longer necessary to spend long hours in the Cosmetologist's Office.The procedure to eliminate age -related changes does not last longer than 15 minutes.
The unique advantages of the fractional laser rejuvenation procedures of the face:
- The main effect of laser radiation falls on the dermis, in which age pigment process, dissolved collagen is destroyed, active recovery processes are launched;
- There is no normal rehabilitation with burns, peeling and crusts, after the procedure, for 2-3 hours, you can observe an unrivaled erythema, which we pass;
- The laser rejuvenation procedure over time takes about 15 minutes, is performed without pain and discomfort.
The skills described in non -ablative rejuvenation by a laser allow to obtain a high level of patient satisfaction, avoid the risks of complications and obtain a result comparable to the ablation procedures, but without damage to all the layers of the skin.