Are you looking for facial hair options? When it comes to laser removal, the laser must have the power and wavelength that can catch the hair melanin to achieve better outcomes and should be controlled by a doctor not to cause any damage to the skin.
Facts
Power unit: It must be given enough light at each laser pulse to permanently destroy the hair or the hair root. If this amount of energy is below a certain threshold, the hair may be destroyed while the root or hair follicle remains unscathed. This will re-emerge following the hair shaft after a few weeks and so on is achieved without any reduction in the amount of hair.
Spot treatment: effective in hair removal lasers have a spot treatment for at least1 cm2. If the size of this spot is smaller, as the light scatters as it penetrates the skin, it is possible to get enough energy in the skin depth to destroy the hair root.
Wavelength: It is important that the lasers emit their light in a color that is absorbed by the pigment of hair. This type of color lasers emit it alexandrite, diode and 800 nm pulsed light. Other lasers with longer wavelengths, the color gets more in the infrared spectrum are not sufficiently absorbed by the pigment of hair and its root is not destroyed so easily.
Proper cooling system: Although the skin is lighter than the hair, not exactly transparent and can be heated with the light that is designed to destroy the hair root. For this reason, if a laser is powerful enough and has a spot big enough and its light has a color that is sufficiently absorbed, the surface of the skin has to be compulsorily cooled, otherwise you might experience burns.
More
In recent years there have been various hair removal techniques that sometimes are confusing and are included under the term hair removal laser hair removal. Hair removal is a generic term that defines all light hair removal systems. Laser hair removal is a light hair removal system that can act selectively on the hair without damaging the tissue and skin.
Some hair removal that emits a pure light of a single color (monochrome) that moves in a straight line and all members of the light photons travel at the same address. Furthermore, pulsed light, this laser emits a mixed composite of many types of photons (polychromatic).
Time needed between sessions
The periods between sessions depend on the treatment area.
Areas
The knives work well on legs and underarms, but not as effective in other areas of the body. For example, are banned for the arms, bikini area and upper lip. Apart from that we can get small cuts in these sensitive areas, the hair grows faster and harder and, as already mentioned in the previous section may appear itching, bumps, etc. So … Not a good idea!
This instrument is not recommended for people with long hair, then use it only will grow the most. There are certain parts of the body such as knees or ankles, in which we can use the knife whenever we take our time and go carefully. Sensitive skin will thank you.
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