Abstract
Tattoos have become ingrained in our society and have served varied purposes throughout human civilization. So long as tattoos have existed, there has been demand for their removal. Lasers are currently the modality of choice in the removal of tattoos, as they are more efficacious than previously used methods. The most common lasers are the 532nm and 1064nm neodymium-doped yttrium aluminum garnet lasers, the quality-switched 694nm Ruby laser, and the quality-switched 755nm alexandrite laser. However, picosecond lasers are rapidly gaining favor in tattoo removal. An in-depth understanding of laser principles and how they can be applied in the setting of tattoo removal is key. Also, a greater understanding of the origin of and colors within a tattoo, the presence of tattoo layering, and a patient's Fitzpatrick skin type increase the odds of satisfactory results. This review provides dermatologists with a comprehensive summary on laser fundamentals, an overview on treatment principles, and recent developments in the field of laser tattoo removal.
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