Also known as “invisible eyeliner”, tight-lining is the process of applying semi-permanent ink into the base of the client’s eyelashes to fill in gaps and create a subtle definition in their eyes. The consultation and application process takes between one to two hours, and clients should expect the healing process to take anywhere from three to seven days, with minimal swelling. Tight-lining requires touch ups every six to twelve months; clients who have oily skin or overactive tear ducts may require more frequent touch up sessions.