Every single day that I am awake, I wear false eyelashes, which I love, but I do worry for my natural eyelashes and using the eyelash glue daily. I wanted some way to help moisturize and help my actual eyelashes grow, and this is a perfect way to do just that. First of all, when it was delivered, it was just the plastic sealed tube with the insert brush inside and I was a little annoyed, I like having instructions for most everything, but when I first used it and since then on, I am more appreciative that it didn't come with instructions since it is so easy to use. You merely brush the castor oil on your eyelashes and eyebrows using the included until you are satisfied. I dip it multiple times per application and I wear some light makeup when I use it, and it doesn't interfere with that either. I really like using this stuff every night, and then I can sleep with the oil on and since I have been using it, it really does feel like it has been helping my eyelashes heal and recover. Amazing!