Scar tissue can sometimes be a part of any tattoo removal depending what colors you have and if you were scarred when the tattoo was put into you. But, I have found most experienced laser tattoo removal places can do a great job with no or minimal scarring with the laser. When you have scarring from the tattoo artist it is basically hidden by the ink, so sometimes is not seen until we start removing the ink. When the laser scars you, it is usually due to wavelengths that hit your ink along with the melanin (the brown coloring) of your skin. Red, yellow, pink, orange and brown colors require a laser wavelength that likes to hit your melanin, ruining it (scarring you) while removing those colors. Also, the wavelength required to remove colors like blues, greens and purples can do the same thing. If you have just black ink and you find a PicoWay laser with a 1064nm wavelength it should not scar you upon removal. The other key is if you wait long enough in between treatments to allow for majority clearing of the ink and deep skin healing then the laser should not scar you or very little even with difficult colors. You can also consider doing scar treatments during the tattoo removal process if you know you already have scar tissue in your tattoo. It can look smoother when you get done.