Tattoo removal, nowadays, is done by laser technology. It is performed by shooting laser through the skin layer around tattoo areas. Laser breaks up the pigment colors, and those inks will be excreted via lymph or scab. There are many types of laser for tattoo removal depending on colors of tattoo, and laser works by absorbing ink or exfoliating your skin. Absolutely, multicolor tattoo is harder to remove than unicolor one.
The easiest places to remove a tattoo are face and neck since the skin around these areas is thinner than body and limb. Skin around body and limb is harder to remove and prone to have scars. Moreover, types of ink are one of the factors affecting difficulty of tattoo removal.