The video — which has nearly 13 million views — shows a patient who has worn eyeliner in their waterline since they were a teenager. The patient's oil glands are now blocked...and you can see the oil ...

Waterline eyeliner isn’t a new method for defining your eyes, but it has made a resurgence in the beauty world. Eyeliner is best for brightening your eyes when you need to look awake, plus it helps ...