Before talking about fractional laser rejuvenation, it is worth touching the issue of skin aging and understanding the processes that occur in it.
Skin aging processes and its causes
The condition and appearance of the skin are determined by the renewal rate of their connective tissue cells and fibers, as well as the degree of humidity of all its layers.Fibroblasts are responsible for collagen and elastin synthesis in the dermis.And the continuous renewal of the epidermis is guaranteed by the presence of stem cells, which are actively divided.
Citocins: biologically active molecules, which regulate cell activity and force them to work in agreement, have stimulating effects on the tissue.Citocins determine the survival of cells, their division, growth and functional activity.These molecules are rapidly transmitted from one cage to another, causing a "waterfall" of changes.
Age -related changes are due to the general slowdown in blood circulation and tissue metabolism, a decrease in cell division, its synthetic activity.So, for example, collagen content in the dermis, from 25 years, decreases to an average speed of 1% per year.Collagen quality is also reduced.It is released and cannot provide the previous skin tone.The concentration of hyaluronic acid is reduced, in the amount on which the level of skin moistry, the activity of fibroblasts and other cells depends.
An additional aging factor is ultraviolet radiation, under the influence from which elastin and collagen fibers are destroyed, which guarantees the elasticity of the skin, the expansion of surface vessels with the formation of vascular stars and mesh.The protective reaction of the skin in the form of production of an additional amount of melanin, an increase in the number of epidermal cell layers causes the appearance of age spots, a heterogeneous complexion.
The result of all these internal processes are the external manifestations of aging:
- Loss of elasticity and elasticity of the skin, prolapse of the soft tissues of the face with the formation of nasolabial folds, "flying" in the cheek area, diffuse face contour;
- dynamic and static wrinkles;
- unequal skin color with hyperpigmentation spotlights;
- the appearance of tulangiectasia;
- Reducing the level of moisture of the tissues.
To rejuvenate the skin, we must eliminate all the previous external changes.In order for the result that the anti -enjudo 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 eliminated using a controlled harmful effect, which allows you to preserve stem cells;
- The intensity of the harmful effect must be such that activating skin restoration, accelerating metabolism and cell division process.
What does the term "fractional" mean?
During the cosmetological procedure, we can eliminate all changed fabrics.This effect is achieved, for example, during peeling, when the acid affects the entire skin area.In this case, you must prepare for prolonged restoration, peel.During deep peeling there is a risk of complications: a chemical burn can live with the formation of scars.The only reason why peel is still actively used in cosmetic halls is a slight depth of penetration of the composition.With a sufficiently superficial effect of body resources, there is enough to restore tissues without scars and other problems.
In the case of laser effects, continuous damage to tissues leads to burn and related complications.Exposure to fractional laser allows you to stimulate the update of the epidermis and dermis without serious negative consequences, during which thermal lesion columns are created: evaporation areas of microscopic tissues.Thermal exposure columns are interspersed with areas without skin changes, which creates optimal conditions for healing.At the same time, the "waterfalls" of the cytquine, which emerge in the microdama spotlights, extend to the entire variety of epidermis and dermis, healing, rejuvenating the skin, improving its appearance.
What is the difference between rejuvenation cannot rejuvenate fractional and fractional ablation rejuvenation?
A characteristic of ablative lasers is that the energy of its radiation is absorbed by water, which is in abundance both in the dermis and the epidermis.The result of laser exposure is the destruction of the 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 fractional lasers includes:
- Fractional co2 Laser with a 10600 nm wavelength;
- Fractional erbio laser (ER: YAG, 2940 NM);
- Facional Erbio Laser on glass (ER: YSGG, 1790 Nm).
With your help, you can achieve a significant softening of skin relief, eliminate wrinkles, hyper and hypopigmentation spotlights.During treatment, approximately 37% of the changes are eliminated due to the photographic.The disadvantage of ablative fractional lasers is their quite aggressive effect on the tissue, which in 44% of patients with II-V photographs of the skin in Fitzpatrick leads to the development of post-inflammatory hyperpigmentation.
The radiation of the non -glutive fractional laser does not damage the epidermis, but acts mainly in the dermis, which determines its softest and most scary effect on the fabric.Neodymal (ND: YAG, 1440 Nm), Erbiye (ER, 1550 Nm), Tolevy Voloconny lasers (1927 Nm) allow you to significantly improve skin texture, eliminate wrinkles.Laser procedures allow to improve skin color, eliminate pigment spots, 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 photo-type III, it is only 3%, with IV-12%, with V-33%.
Picosegund Alexandrite also belongs to the non -glatative group of fractional lasers.In addition, it has a distinctive property that determines greater efficiency and safety compared to other laser laser rejuvenation procedures.
The duration of the pepper pulse is several tens of times the time of time necessary for fabrics for heating after exposure to light outbreak.Pulse energy is spent on the destruction of cells that contain melanin, while surrounding tissues do not heat or damage.This allows you to use fractional laser non -blight to remove age spots, wrinkles, expanded pores at any time of the year, in patients with any type of skin without risk to obtain complications.
The effectiveness of the picosegonds impulses guarantees a unique nozzle, whose lenses concentrate the energy of laser radiation in hundreds of Mikrolučej.This resembles a "traditional" fractional rejuvenation, but the impact on each microlite is not thermal, but photomechanical.In the center of the impulse, this is a photomechanical "pressure" on the strongest cells than around the edges.Because of this, the "waterfalls" of the cyt corner rush to the skin, towards the dermis and not to the sides, according to the epidermis.It is there that the processes of regeneration, renewal and restoration of tissues are launched.
Due to the high laser speed in a short period of time, it can "process" a significant area of the skin.You no longer need to spend long hours at the cosmetologist's office.The procedure to eliminate age -related changes does not last more than 15 minutes.
The unique advantages of the fractional laser rejuvenation procedures:
- The main effect of laser radiation falls on the dermis, where the age pigment is destroyed in the treatment process, the loose collagen is destroyed, active recovery processes are launched;
- There is no usual rehabilitation with burns, pelar and scabs, after the procedure, for 2-3 hours, you can see an erythema not pronounced, which is passed;
- The laser rejuvenation procedure takes approximately 15 minutes, is carried out without pain and discomfort.
The decisions of non -ablative rejuvenation by a laser allow you to obtain a high level of patient satisfaction, avoid the risks of complications and obtain a result comparable to ablation procedures, but without damage to all layers of the skin.