An Eyelash Extension refill is when your natural lash either sheds or grows out. During your refill, whatever week you come in, I will replace any missing eyelash extensions along with removing any extensions that have grown out. I will then add new eyelash extensions to any natural lashes that do not have extensions already on them. It is a really simple process and will not take as much time as your initial classic or partial set took.
* I recommend coming in around week 2 for your refills because it will cost less and you will always have a full looking set!