The LightSheer is a hair removal laser manufactured by Coherent Laser Corporation. This laser was the first diode laser system approved for hair removal by the Food & Drug Administration (FDA). It is also the first laser approved by the FDA for permanent hair reduction. This laser utilizes 810nm wavelength light and targets the pigment (melanin) contained in the hair follicle and shaft. In order to protect pigment containing structures in the outer layer of skin (epidermis), a cooling handpiece is applied to the skin which decreases the surface temperature and prevents injury from heat. The cooling tip also has a mild anesthetic property allowing tender areas to be treated in a relatively painless fashion.
Hair follicles develop from a complex series of interactions between different elements of the skin. Interestingly, not all hairs are actively growing at the same time. They actually go through distinct phases. For example, at any one time 90% of the hairs on the scalp are in the growth (anagen) phase, compared to only 70% of the hair on our arms. During the regression (catagen) phase, the surrounding skin begins to absorb the hair bulb. Finally, the hair enters the resting (telogen) phase, at the end of which the hair falls out and the follicle begins the cycle again.
Age, ethnicity, medication, hormone levels, and body site influence the length, coarseness and color of body. How much hair you have depends on how many years are in the active phase, and how long that phase lasts.
Your doctors have chosen this laser because of the extensive clinical and basic science research, which documents the effectiveness for hair removal. Many other laser hair removal systems can not make this claim. The LightSheer laser also allows treatment of dark skinned patients. No other laser can safely treat these patients.
The light emitted by the LightSheer is absorbed by the pigment located in the hair follicle. The laser is pulsed, or “turned on”, for only fraction of a second. The duration of each pulse is just long enough to disable the follicle. The LightSheer’s unique, patented contact-cooling handpiece helps protect the skin by cooling during the laser energy delivery. The light at 810nm is absorbed by the pigment in the hair follicle and this energy is converted to heat which results in thermal damage to the hair follicle. This thermal damage causes delayed re-growth of the hair, and in some cases permanent destruction of the hair follicle.
Yes. The LightSheer System was developed from years of research at the Wellman Laboratories of Photomedicine, one of the world’s leading medical research institutions. The laser parameters were carefully defined to inhibit the regrowth of the hair by studying the anatomy of the hair follicle and precisely matching the laser output to the size, depth and location of hair follicles. A unique component of the LightSheers System, the actively-cooled sapphire handpiece was designed to conduct heat away from the skin before, during and after each pulse.
You may feel a tingling or stinging sensation, and some areas of the body are more sensitive than others, but most people tolerate the procedure well. If you find the 1st treatment too uncomfortable you can request a prescription for EMLA topical anesthetic.
The LightSheer works by disabling hairs that are principally in the active growth phase at the time of the treatment. Since other hairs will enter the growth phase at different times, additional treatments may be necessary to disable all hair follicles in a given area. Our staff will work with you to develop the best program that fulfills your needs. Treatments are given at intervals of 4-8weeks. 5 treatments are usually necessary.
The LightSheer is the only laser approved by the FDA for permanent hair reduction. Patients can expect a permanent hair reduction after 4-5 treatments.
Within several minutes, the treated area may become slightly red and puffy. This reaction subsides quickly and within a day or so the areas return to normal. Since the LightSheer does not cut the skin bandages are generally not necessary and most people usually return to normal activity immediately. Do NOT, however, plan any important social engagements for one week after your treatment.
Your doctor may prescribe a mild topical steroid cream to apply to the treated areas for 2-3 days. Around day 3-7 after treatment you may experience what seems to be hairs regrowing. Many of these hairs, however, are being shed and are not regrowing. In-between treatments you should not wax or pluck your hairs.
The ideal candidate for most hair removal lasers has dark hairs and light skin. Darker hairs absorb more of the laser light, and lighter skin interferes less with the transmission of the laser light into the follicle. Dark or tan skin runs a higher risk of pigmentation changes following the procedure. The LightSheer’s unique longer wavelength at 840nm allows treatment of darker skinned patients. No other lasers have this property. White hairs respond the least to the LightSheer.