Tattoo removal has been performed with various tools since the start of tattooing. While tattoos were once considered permanent, it is now possible to remove them with treatments, fully or partially.
Tattoo removal by laser was performed with continuous-wave lasers initially, and later with Q-switched 'ND-Yag' lasers, which became commercially available in the early 1990s. Today, "laser tattoo removal" usually refers to the non-invasive removal of tattoo pigments using Q-switched lasers. Typically, black and other darker-colored inks can be removed completely..