If you're plagued by excessive or unwanted facial or body hair, you may seek a permanent solution. Laser hair removal damages the hair follicles to help prevent further hair growth. The procedure is often very successful but, as with any medical procedure, it does carry risks for some people.
Types
The lasers used during laser hair removal emit a low-energy beam that hair follicles absorb through the dark pigment. Different types of lasers work better on various skin types. The first lasers used for laser hair removal were the ruby, alexandrite and diode lasers, according to the American Academy of Dermatology. Intense pulsed light lasers work best on individuals with light skin and darker hair. People with darker skin tones may need treatment with lasers that have longer wavelengths.
Pre-Treatment
Talk to your doctor about any questions and concerns before deciding on laser hair removal. Some individuals respond better to laser hair removal than others, and your doctor can help you make an informed decision based on your skin type, hair color and hair location. Tell your doctor about any medical conditions you have or have been treated for in the past, including any medications or supplements you currently take.
MayoClinic.com recommends staying out of the sun for a few weeks before your treatment, as tanning can increase the risk of side effects from the procedure. Do not pluck or wax areas where you are planning on having laser hair removal done, as this disturbs the hair follicle. Shaving does not affect the follicle, and some doctors believe shaving before the procedure can actually improve results.
Laser Treatment
The doctor performing your laser hair removal procedure will clean the area prior to treatment and may shave it, as well. Your doctor may apply a topical anesthetic if you are having a large or sensitive area treated. You and your doctor will wear protective eyewear during the procedure, and your doctor will hold your skin tightly each time he fires the laser. You may feel a cool spray of water to protect your skin from the heat and may smell a sulfur-like scent from the vaporized hair. The procedure can last anywhere from a few minutes to an hour or more, depending on how large the treated area is.
Efficacy
Most people require several treatments to achieve the best results from laser hair removal. Most individuals see a 10 to 25 percent reduction in hair growth with each treatment, according to the American Academy of Dermatology. Areas with thin skin generally have better results than areas with thicker skin, such as the back and chin. You can receive subsequent treatments four to eight weeks after the previous treatment. Many patients see up to an 80 percent reduction in hair growth after several treatments.
Side Effects
Most side effects from laser hair removal are mild and go away on their own within a few days. You may experience pain, redness and swelling around the treated area following the procedure. Some patients develop blisters, bacterial infections or cold sores after treatment, though these are uncommon and rarely serious. People with darker skin tones may notice a temporary lightening of the skin around the treated area, though this is rarely permanent.
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