Tattoos contain a variety of pigments so that more than one type of laser may be necessary for complete removal. The same pigment may vary in response in different patients. Superficial dark pigment usually responds to the Q switch ruby laser, but deeper pigment may require the Nd: YAG laser or Alexandrite laser. Green pigment is usually removed with a Q switch ruby laser and red pigment with a green light laser such as the Q switched Nd: YAG. It is found that professional tattoos are usually more easily removed than the amateur type.
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