Permanent eyeliner is a treatment you can receive that replaces the need to wear eyeliner each day. Permanent eyeliner involves using a tattooing technique to apply ink along the lashline/ waterline to create the appearance of eyeliner. (This ink is permanent, but has to be touched up every 3-5 years.)
Eyeliner tattoos can be applied in a variety of styles, from extremely thin and natural-looking liner, to thicker lines, and even winged eyeliner.
The waterline eyeliner makeup technique requires placing eyeliner on your waterline, aka the inner rim of your eyelid, for a subtle final look.