In modern dermatology and cosmetology, a large number of methods for correcting age -related changes in the face of the face have been developed. Field laser rejuvenation is one of the non -drug methods of combating aging. Sparing laser correction technologies are becoming increasingly popular due to their technical simplicity and short recovery period.
The principle of operation of the fractional laser
Unlike classic laser grinding, in which the entire surface layer of the skin is evaporated, the fractional laser works pointwise.The rejuvenation of tissues is associated with the phenomenon of Hormesis - the stimulation of recovery processes under the influence of stress, the strength of which is insufficient to manifest harmful consequences.In this case, a laser beam, leading to tissue heating to 45–90 ° C. Since the contact time of the light beam with the skin, acts as a stress factor (up to 0. 0003 C), the temperature increase in a small area of the order of 100 microns. Heat is not transmitted to the surrounding tissues.
Distinguish 2 main types of fractional laser impact - ablation and non -abroad
After processing the tissues, an inflammatory process occurs with a laser beam, but the stingy layer of the skin remains intact. Thermal stress stimulates the production of special biologically active proteins and the activation of cellular activity aimed at survival. In healthy tissues surrounding the heating area, intensive production of collagen and elastin begins, metabolic processes are enhanced. As a result, the skin becomes more smooth, elastic, the moisture content increases.
The study of the Hormesis process was carried out at Volat-Fructus Volat at elevated ambient temperatures. For those individuals that survived with thermal stress, life expectancy was higher than among insects in the control group contained in normal conditions. Perhaps, the production of heat shock proteins and such wellness procedures as a bath, a sauna and hardening in ice water are also associated.
The duration of the rehabilitation period with fractional laser rejuvenation is reduced, since skin damage is small-pointed, and not continuous. The surface area under thermal exposure is about 20%. Dead cells, melanin pigment and other metabolic products are partially absorbed by macrophages that strive to penetrate the inflammation zone. The rest of these substances is supplanted to the surface of the skin 3-7 days after laser processing. After 4-14 days, complete restoration of tissues occurs.
Indications for use
Field laser rejuvenation of a person is used in the following cases:
- Elimination of signs of skin aging:
- decrease in elasticity;
- expanded pores;
- Uneven color.
- The smoothing of static and facial wrinkles, including delicate areas near the eyes, on the eyelids to the eyelashes.
- Treatment of melasms, pigment spots (liver, sunny, age, hormonal).
- Correction of scars, postoperative scars, uneven texture.
- Treatment of skin defects, which are a consequence of acne.
Technology of fractional laser rejuvenation of the face
In modern cosmetology, 2 methods are used, which are fundamentally different in the method of influence on the skin:
- Ablation, in which there is an irreversible point destruction of the surface layers of the dermis. This method is the most effective, but requires prolonged rehabilitation. Processing is carried out using erbium (ER: YAG), neodymium (ND: YAG) or Carbo Dioxide (Co2) laser, wavelength length of a photon beam - from 1440 nm. In most cases, when they talk about laser fractional rejuvenation, they mean precisely Ablative.
- Non-Blative, with a milder effect, the beam wavelength is 825–1350 nm. In this case, severe heating of the tissues occurs to a change in the structure of protein molecules.
The first technique is most widespread.
The duration of the pulses, their frequency, energy density and the number of points with a laser beam are adjustable depending on the tasks of processing. With their increase, respectively, the destruction of tissues increases. Fraxel Re: Pair lasers with a wavelength of 10, 600 nm and its analogues are more effective (1 procedure is equivalent to 3-4 sessions on another equipment), as it provides a deep effect. However, the rehabilitation period of up to 5-7 days increases and serious anesthesia is required.
Omolate using laser techniques provides for course treatment. The number of procedures is individually and fluctuates in the interval of 3-10 sessions.
Carrying out the procedure
Before the treatment, it is necessary to consult a doctor, inform him of the medications taken. Some of them (products that thin blood, isotinoid and others) must be canceled a few months before the first session.
Preparing the skin of the face for the rejuvenation procedure includes the following manipulations:
- Cleaning of cosmetics.
- Antiseptic treatment.
- Applying an anesthetic drug of local action, excerpt for 40-60 minutes.
- The imposition of a contact gel layer for uniform sliding of the sensor (it is not needed for models of lasers of the last generation).
Directly during processing, the doctor conducts the tip of the device on the skin along straight lines in various directions. The nozzles used have a size of 7x7 or 15x15 mm, an area of 0. 5–2 cm is highlighted in one passage2.
The duration of the session depends on the size of the processed surface. On average, it is for the whole face for about 20 minutes.
After the procedure, the lubricant is washed off, the face is washed with foam, applied a soothing and moisturizer. The next processing is carried out after 3-4 weeks.
Used drugs
In fractional laser rejuvenation, an analgesic gel (ointment) and a special lubricant are used. Other drugs are not used. With deep effects, it is recommended to apply ointment to the treated skin processed after the procedure.
Specialized centers also offer professional care cosmetics designed for intense rejuvenation methods: restoring and moisturizing creams, correctional gels to reduce the density of scars and other skin defects (lifting gel, correctional gel and others).
Rejuvenation results
Field laser rejuvenation demonstrates good results confirmed clinically:
- A new one is formed in the place of the rough connective tissue from which the scars are formed. Thin scars completely disappear, and wide scars become less noticeable after 4-5 sessions. Positive dynamics is observed within a month after the course of procedures.
- Small wrinkles disappear, including a "net" around the eyes.
- In the presence of a post -acne, the bottom of the Crater scars is leveled with the level of the surrounding areas of the skin. The result is visible after the second procedure, and in total it is necessary to take a course of 5-7 sessions.
- The skin of the face acquires a "fresh" look, its elasticity improves.
- The complexion is aligned, pigmented spots become paler.
Reducing hyperpigmentation is fixed after the first procedure. The mechanism of exposure to the laser beam in this case differs from other methods. Fraxel technology destroys cells that produce and accumulate melanin. At the site of dead cells, others are formed that synthesize the normal amount of pigment.
The most pronounced rejuvenation is manifested in people of young and middle age with thin skin.The duration of the effect is individual and decreases under the influence of the following factors:
- a decrease in the reactivity of the body under the influence of an adverse environment;
- age;
- poor nutrition and bad habits;
- concomitant diseases;
- a change in hormonal status;
- burdened genetic heredity;
- Increased thickness of the dermal layer of the skin.
The lifting effect as a result of treatment is secondary and is due to the fact that the skin becomes more dense and healthy. Experts recommend after a full course on Fraxel technology to conduct 1 supporting procedure annually.