Dark circles under the eyes are a common concern that many people notice as they age or when sleep and sun habits are off. A well-known American dermatologist explains that several factors can contribute to this look, including long-term sun exposure, insufficient sleep, genetic predisposition, and natural thinning of the skin that comes with age. These elements can work together to create more noticeable shadows and a tired appearance around the eyes. [Daily Mail via Dr. Puza evidence]
As skin loses collagen over time, the layer beneath the surface becomes thinner. Collagen provides structure and support for connective tissue, so when production declines, the underlying blood vessels near the eye can become more visible. That visibility often creates the perceived dark circles, particularly in people with lighter skin tones or those who have a naturally thinner lid region. In some individuals, the proximity of these vessels to the skin is an inherent trait, making blue or purple tints noticeable even in youth. Dermatologists suggest that products with vasoconstrictor ingredients can help temporarily brighten the under-eye area by narrowing the blood vessels. [Daily Mail via Dr. Puza evidence]
Ultraviolet exposure also plays a role. The skin around the eyes is especially delicate, and prolonged sun exposure can lead to hyperpigmentation and dehydration in the lower eyelid. This is more likely when sleep is inconsistent and rest is limited. In some cases, hyperpigmentation can occur in pregnancy due to hormonal shifts. For these conditions, lightening creams containing vitamin C or tranexamic acid are commonly recommended as part of a broader skincare routine, though results vary by individual. Gentle self-massage and cold compresses can offer additional soothing relief and may help improve the area’s appearance over time. [Daily Mail via Dr. Puza evidence]
In discussions about prevention and improvement, notes about collagen’s role are often revisited. Some readers wonder if collagen supplements might reduce wrinkles or support skin health. While collagen support is a topic of ongoing interest, the evidence remains mixed and varies from person to person. Consulting with a dermatologist can help determine whether supplementation or topical options best fit an individual’s skincare goals. [Daily Mail via Dr. Puza evidence]