Treatment of Melasma Using a Novel 1,927-nm Fractional Thulium Fiber Laser: A Pilot Study

Background

A 1,927-nm wavelength was recently added to the 1,550-nm erbium-doped fiber laser. This wavelength possesses a higher absorption coefficient for water than the 1,550-nm, conferring greater ability to target epidermal processes such as dyschromia.



Objective

To evaluate the efficacy and safety of a novel 1,927-nm fractional thulium fiber laser in the treatment of melasma.



Methods

Fourteen patients underwent three to four laser treatments (at 4-week intervals) at pulse energies of 10 to 20 mJ and total densities of 252 to 784 microscopic treatment zones per cm2 (6–8 passes) using a 1,927-nm thulium fiber laser. Three ...

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