I think that everyone that wears make up has, at some point or another, purchased an eyelash curler. Not everyone needs this but if you wear mascara or want to get a little more curve to your eyelashes then this can help. You can use this before you apply mascara or after however if you are using it after you have applied mascara you could end up with it sticking to the curling pads. That can make for an eye-watering experience. I have one of these but only use it when my lashes are a little bent or are not curling properly. Using this is not hard but it can take a couple of tries to find the correctly placement of the curler; you should never allow others to use this because it is coming in close contact with the eye as well as make up which could lead to an ocular infection. While this is a well made curler, it isn't going to last forever. It is a cumbersome item to carry in a make up bag because of the width of it. Most of the Revlon eyelash curlers come with a replacement pad however I have never seen the replacement pads sold individually; there are replacement pad packs from other companies that will fit this specific curler. Even though I don't use this every time I wear make up I like knowing that it is there when I need it. If my eyelashes need a little boost I use this before I apply mascara but there are times when I need to use it after I have applied it. I wait until the mascara is completely dry to avoid having it stick to the pads and possibly rip out an eyelash or two when I am releasing the curler.