Tattoo removal works by using a laser to break up the ink pigments in the skin which will then be removed as the new skin regenerates and replace the old one. Q-switched Nd-Yag laser is a common method used to remove tattoo over the years.
Tattoo removal often require multiple sessions, and the efficiency of tattoo removal depends on the colour of the tattoo, the area that is tattooed and the skin colour of the person. Of course, there are other factors involved. Colours like red and green ink are the longest to get rid off as they do not absorb energy as well as black ink.
Tattoo removal can be painful as the pulses breaking up the pigments are like mini explosions occurring in your skin. Risks of scarring varies depending on individual skin type and ability to recover after tattoo removal. You will need to take care of the wound for a few weeks before returning for the next session.