I have tried many brands of eye masks and this is the first one I use which give me results. They are easy to use and apply. They are a bit thick so I don't apply them very close to my lashline to cause irritations. I leave them on for 6 hours(I don't wear them to sleep though) after I cleanse my face at night and when I remove them, fine lines and puffiness are diminished. I find dark circles are not the easiest to combat. These are made of all natural ingredients which I love and trust for the delicate sensitive under eye area.