What is laser hair removal
Laser hair removal is a progressive removal technique of the light made by laser energy. The first devices for the removal of the laser emerged in the 1970s, but this technology was initially ineffective, very painful and limited. However, in 1983, Anderson and Parrisch introduced the concept of selective photothermolysis (used in laser hair removal), revolutionizing the physical principle of the laser mechanism, leading to greater efficiency. Today there are different types of laser capable of promoting the progressive hair removal.
Laser hair removal can be done by anyone bother with their hair or other methods of hair removal with wax and blade. There are special instructions for cases of pseudofolliculitis (ingrown hairs) both groin, which ends up tainting the region, the face, legs or any other part of the body.
"In general, white fur with the thick and dark respond better to laser hair removal, but that does not mean that anyone who does not fit these characteristics, can not do laser hair removal," says Dr. Isabel Martinez. "Over the years new technologies were created to black skins can do." The dermatologist recommends the use of laser diode and ND YAG with long pulse for these cases. The exception is for those who have hair, white, red and blond - as much melanin is small, there is no good response to treatment for these cases.
"Usually we begin to do laser hair removal from twelve years old," explains Dr. Isabel Martinez. She points out, however, that there are cases reported in the literature employment of laser hair removal in younger children who had congenital hypertrichosis (by abundant for genetic reasons) in the lower back (lumbosacral region).
How is laser hair removal
Laser hair removal removes the progressively
The procedure is performed using a laser emitting apparatus, just by the tax to be eliminated. In laser hair removal, the target is melanin, a substance responsible for the color of the bulb and the stem, causing a minimum thermal damage to adjacent tissue.
When fired the laser pulse, is the absorption of energy photons by the melanin. The absorbed heat is released by the bulb and the stem, causing a thermal destruction of the structures.
The most commonly used lasers to laser hair removal are alexandrite laser, diode laser (800 nm) and Nd: YAG laser (1064nm).
The laser hair removal is usually painful. In some cases they can be used anesthetic creams and cold air jets to relieve pain.
Sessions of laser hair removal
Sessions should be made every 30 or 45 days. "Generally oriento to do three to four sessions of maintenance after one year, depending on the patient's case," said Isabel Martinez.
Professionals who can do
The legislation does not define what are the professionals able to apply the laser hair removal. However, the recommendation is that an assessment be done with a dermatologist before starting the treatment. This professional can assess your skin carefully and decide which is the best treatment for it. The Izabel Martinez dermatologist's advice is to undergo the technique with a trusted professional or site that you know and trust.
Care before undergoing the laser hair removal
"The patient should avoid sunbathing should not remove the hairs with tweezers or wax in the previous month, before the session is made removal of the razor blade," advises dermatologist Marcia Linhares, a member of the Brazilian Society of Dermatology.
Care after laser hair removal
One should not be exposed to the sun, you should use sunscreen with an SPF of at least 30 and always follow the doctor's recommendations. "It is recommended the use of soothing lotions immediately after the session and in the recovery period of the skin after laser hair removal," explains dermatologist Marcia Linhares.
Contraindication to performing laser hair removal
People with active infections in the areas to be treated can not perform laser hair removal. If there is a sudden hair growth should be performed earlier hormonal research
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