Dark circles under the eyes can be caused by a variety of factors, including genetics, allergies, and lack of sleep. While there is no one-size-fits-all solution for dark circles, eye cream can help reduce the appearance of dark circles. Eye creams are formulated with ingredients such as retinol, vitamin C, and caffeine that work to brighten the skin around the eyes and reduce puffiness. Additionally, some eye creams contain hydrating ingredients like hyaluronic acid that can help keep the delicate skin around the eyes moisturized and plump. It is important to note that while eye cream can help reduce dark circles, it may not completely eliminate them. For best results in treating under-eye circles, it is recommended to use an eye cream in combination with other treatments such as getting enough sleep and using sunscreen daily.