Light Sheer laser system for hair removal information

Light Sheer laser hair removal manufactured by Lumenis is a long pulsed diode laser specifically designed to remove unwanted hair to treat pseudofolliculitis barbae (PFB or razor bumps), leg veins, and some dark spots on the skin faster and with less discomfort and more reliably than any other method.

How does LightSheer system works?
This laser targets the pigment located in the hair follicle and shaft. The light is absorbed by the pigment in the hair follicle and this energy is converted to heat which results in damage to the hair follicle. This damage causes delayed re-growth of hair and, in most cases, permanent destruction of many of the hair follicles. Unlike electrolysis, which disables one hair follicle at a time, the laser reaches and treats hundreds of follicles at a time.

A male patient with pseudofolliculitus barbae, Fitzpatrick Type V skin (C) before treatment of neck, and (D) 8 months after fourthtreatment with the LightSheer diode laser using 15 J/cm2 and a pulsewidth of 30 ms.

A female patient with Fitzpatrick Type III skin (E) before treatment of axilla, and (F) 10 months after third treatment with the LightSheer diode laser using 38 J/cm2 in OptiPulse mode.

Research and Studies

According to a study conducted by researchers on the safety and effectiveness of the LightSheer Diode Laser System in the reduction of pigmented hair in a large patient population with a variety of skin types and hair characteristics.


  • • The Light Sheer 800 nm high-power, long-pulsed diode laser provides effective reduction of pigmented hair in a heterogeneous population of 144 patients with 250 body sites, involving 800 treatments.
    • Treatment was equally effective for Fitzpatrick skin types II-V and treatment response was similar for all hair colors treated (light brown, dark brown, and black).
    • Treatment response was good or excellent in 84% of areas following the second and subsequent treatments. Patients were moderately or extremely satisfied with over 96% of their treatments.
    • Laser hair reduction with the LightSheer Diode Laser System was very safe for all skin types treated. Side effects were noted for only two out of 800 treatments (0.25%). These were transient in nature.
    • The use of the 100 ms pulse width, which was not available for this study, provides additional flexibility for treating skin types V-VI.
    • The longer pulse widths and the unique cooling system available with the Light Sheer Diode Laser System reduce skin damage and allow for safe and effective hair reduction even in darker skinned patients.

  • How long before I see results?
    You will see some results immediately. It takes a week or two for all of the hair in the treated area to fall out. After that, you will experience several weeks of no growth in the treated area. So you’re actually receiving immediate gratification while you are moving toward your long-term goal.

Before & after photos

pseudofolliculitus barbae before using LightSheer diode laser A male patient with pseudofolliculitus barbae, Fitzpatrick Type V skin (C) before treatment of neck, and (D) 8 months after fourthtreatment with the LightSheer diode laser using 15 J/cm2 and a pulsewidth of 30 ms.
image pseudofolliculitus barbae after using LightSheer diode laser
image fitzpatrick Type III skin before treatment A female patient with Fitzpatrick Type III skin (pic 1) before treatment of axilla, and (pic 2) 10 months after third treatment with the LightSheer diode laser using 38 J/cm2 in OptiPulse mode.
after treatment with the LightSheer diode laser

LightSheerdiode laser systems Videos


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