There’s a reason they’re a go-to accessory we reach for most mornings—some use them to mask puffiness and dark circles after countless sleepless nights, while others simply want to look (and feel) more awake in the mornings. Together (or on their own), they work to actively depuff, hydrate, brighten, and smooth the delicate skin under your eyes. “They work by creating a physical barrier, which forces the eyelid skin to interact with moisturizing and active ingredients closely and intimately,” explains board-certified dermatologist Dr. Nava Greenfield.