Our editors handpick the products that we feature. We may earn commission from the links on this page.Dark under-eye circles can impact anyone, no matter their age, skin tone, or sleeping habits. If you have them, you're not alone. Many people experience this common concern. "Dark under-eye circles often develop from a combination of genetics and environmental factors," says Azadeh Shirazi, MD, a board-certified dermatologist. Aging is one of the biggest culprits. As we age, we lose collagen, which creates a hollowness that leads to an increased shadow effect, she explains. "Additionally, the eyelid skin becomes thin and delicate, so the underlying blood vessels become more visible, contributing to the appearance of dark circles," says Marisa Garshick, MD, a board-certified dermatologist at MDCS Dermatology. Hyperpigmentation caused by sun damage or genetics also creates dark circles, adds Garshick. "And those with allergies or those who frequently rub their eyes may notice discolorati...