I have had horrible dark undereye circles since I was in high school. I bought this on a whim. I have been using these every other day for the past month and a half and my circles have lightened up quite a bit. Nothing will ever make them go away completely but now I don't feel self conscious if I leave the house without concealer. My skin under my eyes also just looks better in general. The hydrogel has a nice cooling feeling which is a nice bonus. It was the first product I rebought.