There are several techniques which are claimed to be able to remove tattoos on the skin, but in fact tattoos can not just disappear without leaving a trace. Why can tattoo last tens of years and are very difficult to remove?
According to eHow, a permanent tattoo are very difficult to remove from skin. One cause is because they have to inject tattoo ink into the inner skin layer called the dermis, the skin layer beneath the epidermis. (more…)