Inner Lip Tattoo
The interior of the mouth inside of the lower lip is not uncommonly tattooed with words or phrases and even small designs. The same can also be done inside of the upper lip.
Inner lip tattooing is almost exclusively done in black ink and is obviously restricted by the small area available to the design. It is not uncommon for there to be a great deal of fading varying from person to person and often the piece needs to be get a touch-up a few times before holding well.