The crown of hardware cosmetology in the 21 century is the procedure based on laser exposure. They are carried out with the aim of rejuvenating and healing the skin, eliminating unwanted hair on the face and body for a long time. The gold standard among existing lasers is considered to be diode: it has a wide range of indications, provides pronounced results and, subject to safety precautions, does not pose a threat to health.
Features of the diode laser
In modern cosmetology, four main types of laser are used: ruby, neodymium, alexandrite and diode. Each of them has certain features and specifications. The diode laser is one of the latest developments and differs from others:
- The wavelength. The average is 840 nm (the general range ranges from 375 to 3330 nm).
- Minimum beam diameter and weight within 1 grams. Such indicators make it possible to make devices with a similar type of light radiation compact.
- The generated light in the form of a bell.
Scopes in cosmetology
In cosmetology, a diode laser is used to solve a wide range of problems. Based on its effects in cosmetology, the following procedures are carried out:
- Epilation. Most often, a diode laser is used to remove unwanted hair. The principle of its action is the absorption of the laser beam by the pigment of the hair, inside the core of which light energy is converted into heat and destroys the follicle, which is in the growth stage. The procedure is suitable for dark and ineffective for light, red and gray hair.
- Removal of classic and color tattoos. The action of light pulses in this case is built on the principle of selective photothermolysis, that is, selective exposure to the colored areas of the dermis, without causing damage to other cells. The laser does not perceive all shades and copes well only with black, blue, dark brown, red and yellow colors.
- Treatment of skin rashes. The 1450 nm long wavelength diode is used to treat acne, acne, and inflammation. The device with this type of laser is manufactured by Candela, it eliminates bacteria and causes a burn of the sebaceous glands, reducing the production of sebum, thereby eliminating the cause and consequences of acne.
- Treatment of scars and stretch marks. It accelerates the production of collagen and activates the renewal processes of affected cells, making damaged skin smoother.
- Smoothing wrinkles. Approved for use even in the delicate area around the eyes. The principle of action is to intensify the production of collagen after absorption of light rays, the technique is well suited for small and moderately expressed wrinkles.
Side effects and complications
The reaction of the skin to light exposure immediately after it is negative in most cases, this is quite normal. Possible side effects include swelling, redness, and moderate soreness.. Over time, such manifestations gradually disappear, without requiring specific treatment. If side effects of this kind bother you, it is recommended that you use sunburn, ointments for skin regeneration, and cool compresses.
Unfortunately, for a number of reasons, more serious complications may occur after the procedure. They happen infrequently, but may be:
- Burns. Manifested on dark or sensitive skin. The cause of the occurrence is a high light flux density, neglect of contraindications, violation of safety precautions.
- Folliculitis It is observed after epilation. Represents inflammatory processes in the place of hair growth, resembles pimples with white heads. The reason for the occurrence is the patient’s non-compliance with the recommendations for skin care after the procedure.
- Exacerbation of herpes. The reason is a history of the disease, insufficient preliminary preparation for the procedure (the patient did not drink the course of herpes medicines).
- Allergic manifestations (urticaria, dermatitis and others). They occur on painkillers or the light exposure itself (if it is intolerant). Treatment – taking antihistamines inside.
The use of a diode laser is permissible in the absence of contraindications to the procedure. Light exposure of this kind is not recommended for:
- Pregnancy and breastfeeding.
- Oncological diseases.
- Diabetes mellitus.
- Viral infections accompanied by complications.
- Exacerbation of chronic lesions of internal organs.
- Violation of the integrity of the skin, benign formations at the site of the laser.
- Vascular and heart diseases.
- Individual intolerance to light radiation.
It is recommended to postpone the use of the laser immediately after active sunbathing (on 2 – 3 weeks) and surgery performed at a potential treatment site (on 3 months).
A diode laser eliminates unwanted hair, removes tattoos and scars, and promotes enhanced collagen production and skin rejuvenation. During the procedure, light pulses of 840 nm length are generated, which are absorbed by the upper layer of the dermis or pigment inside the hair, depending on the settings and type of procedure. Exposure is safe for health, subject to contraindications.