Combination of Dual Wavelength Picosecond and Nanosecond Pulse Width Neodymium-Doped Yttrium-Aluminum-Garnet Lasers for Tattoo Removal.

Background And Objectives: Tattoo removal by laser has been mostly performed using Q-switched laser, which has nanosecond pulse width. In recent years, the efficacy of treatment with picosecond pulse width laser has also been reported.

Study Design/materials And Methods: Using a picosecond-domain, neodymium-doped yttrium-aluminum-garnet laser with a potassium-titanyl-phosphate frequency-doubling crystal, we performed a retrospective clinical study with combination treatment using pulse widths of 750 ps and 2 ns.