Before laser and IPL devices entered the market, electrolysis was the only form of permanent or long-term hair removal available. Electrolysis is still performed today, but it is painful and invasive to the skin, allowing for a chance of infection. Unfortunately, this painstaking process is performed one hair follicle at a time. During the electrolysis procedure, a fine needle is inserted into the hair follicle, delivering a galvanic current to destruct the follicle stem cells. Regular maintenance procedures are often required for years after the initial treatment.
In contrast, with laser and pulsed light technology, hundreds of hair follicles are treated at a time and vary upon the spot size (the size of the tip of the device delivering energy). These hair removal procedures are non-invasive and take only minutes to perform instead of the many hours with electrolysis.
What is Melanin?
A patient's skin type and hair color can be the most important consideration prior to hair removal treatment. Laser hair removal is based on selective photothermolysis (using light and heat for destruction of a hair follicle) with melanin being the target chromophore (chemical grouping that produces color). The difference between the absorption of laser or light energy by melanin in the hair follicle and melanin in the epidermis determines the amount of energy that can be safely used without harming the skin.
Light skinned patients with dark hair are considered to be the ideal patients for hair removal On the other hand, a patient with very dark skin and gray or white hair, would have little if any response. Since melanin in the hair shaft and follicle are the target source for laser and IPL hair removal procedures, it is important for patients during their initial consultation not to tweeze, wax or use any depilatory device prior to hair removal. The patient can, however, shave the area to be treated (which preserves the chromophore in the follicle), or can use hair removal creams. Hair which is protruding from the skin can singe during a laser or light treatment which causes an unpleasant smell and possible flares.
Preparing for Hair Removal
Most devices technically operate the same way when performing a hair removal. The parameters on the equipment should be adjusted according to the history and skin analysis of the patient. The patient should be instructed to refrain from using any body washes, lotions, cosmetics, or any skin medications the day of treatment. Some patients may prefer to have a topical anesthetic applied prior to the procedure. If any residue of the anesthetic remains, it should be wiped clean from the skin. It is also important for patients to avoid dark clothing near the area to be treated as the dye in the clothing can be absorbed by the laser or light resulting in a painful burn. A patch test should be performed on the intended treatment area. Several monthly treatments are recommended for the best results and a yearly maintenance procedure is recommended. - 30516
In contrast, with laser and pulsed light technology, hundreds of hair follicles are treated at a time and vary upon the spot size (the size of the tip of the device delivering energy). These hair removal procedures are non-invasive and take only minutes to perform instead of the many hours with electrolysis.
What is Melanin?
A patient's skin type and hair color can be the most important consideration prior to hair removal treatment. Laser hair removal is based on selective photothermolysis (using light and heat for destruction of a hair follicle) with melanin being the target chromophore (chemical grouping that produces color). The difference between the absorption of laser or light energy by melanin in the hair follicle and melanin in the epidermis determines the amount of energy that can be safely used without harming the skin.
Light skinned patients with dark hair are considered to be the ideal patients for hair removal On the other hand, a patient with very dark skin and gray or white hair, would have little if any response. Since melanin in the hair shaft and follicle are the target source for laser and IPL hair removal procedures, it is important for patients during their initial consultation not to tweeze, wax or use any depilatory device prior to hair removal. The patient can, however, shave the area to be treated (which preserves the chromophore in the follicle), or can use hair removal creams. Hair which is protruding from the skin can singe during a laser or light treatment which causes an unpleasant smell and possible flares.
Preparing for Hair Removal
Most devices technically operate the same way when performing a hair removal. The parameters on the equipment should be adjusted according to the history and skin analysis of the patient. The patient should be instructed to refrain from using any body washes, lotions, cosmetics, or any skin medications the day of treatment. Some patients may prefer to have a topical anesthetic applied prior to the procedure. If any residue of the anesthetic remains, it should be wiped clean from the skin. It is also important for patients to avoid dark clothing near the area to be treated as the dye in the clothing can be absorbed by the laser or light resulting in a painful burn. A patch test should be performed on the intended treatment area. Several monthly treatments are recommended for the best results and a yearly maintenance procedure is recommended. - 30516
About the Author:
Medical Spa MD is a cosmetic medical community of Plastic Surgeons, Cosmetic Dermatologists, and Aesthetic Physicians with more than 3,500 physician members. Medical Spa MD offers Medical Esthetician Training and provides information on non-surgical cosmetic medical technologies and treatments.
