Cosmetic lasers are used in aesthetic medicine and cosmetology in order to treat diseases and heal or remove any possible skin imperfections. They help to cope with discolorations, unwanted hair, tattoos, scars, broken capillaries and wrinkles. Check, which type of laser your beautician or a dermatologist should use so as to say goodbye to all your skin problems once and for all.
The word laser is the acronym of Light Amplification by Stimulated Emission of Radiation, which in plain English stands for a device generating a special kind of light. Work of laser is based on absorbing energy to give it back in a form of light. This light in turn has one length of the wave, is coherent and the divergent of a beam is low. Thanks to this, laser light is concentrated in a very thin and precise beam which enables to remove or cure even the tiniest skin lesions.
Cosmetic lasers are divided accordingly to the type of light that is emitted by a particular device as well as to the kind of the interaction occurring between the light and skin. The source of light can be, for example, a solid body, a gas, a crystal or an organic dye. The way the light affects skin depends on the sensibility of pigmented cells that are located in a tissue. A beam of weak force doesn’t bring about any effect whereas the beam of considerable strength can lead to skin burns, scars or irritations.
Cosmetic lasers can be also divided into the following categories: diode, analogue, alexandrite, ruby, Nd:Yag and CO2. The source of light in laser diode is a semi-conductor so, in other words, it’s simply a diode. It emits light of 630 up to 980 nm (nanometres). Laser diode is used to treat acne, shrink the blood vessels, remove hair and reduce cellulite. The device is adopted for dermatologic surgery treatments as well as for removal of warts, papilla, skin lesions, fibroids and neoplastic lesions.
Argon gas is the source of light in argon laser. It emits blue and green light of 480 up to 515 nm length. The device is used to treat pigmented lesions, remove discolorations, shrink blood vessels and treat erythema. When it comes to alexandrite and ruby laser, these emit light the source of which is crystal. The length of alexandrite’s beam is 755 nm, whereas the second generates beam of 694 nm length. For the procedure of shrinking blood vessels dermatologists use alexandrite laser. Removal of discolorations, tattoos as well as unwanted hair is possible thanks to ruby laser.
Nd:Yag laser emits a beam of 1064 nm length. It’s used to eliminate vascular lesions such as: erythema, acne as well as many skin and vascular lesions caused by sunbathing. Laser CO2 uses carbon dioxide and is able to emit beam of 10 600 nm length. It’s used for laser dermabrasion procedures. This type of laser is helpful at highlighting scars, pigmentations as well as at reducing wrinkles along with any other skin ruggedness.