Dark eye bags, also known as dark circles, are caused by a variety of factors, including genetics, aging, and lifestyle habits. Thin skin under the eyes allows blood vessels to show through, leading to a bluish or purplish tint. As we age, skin loses collagen and elasticity, making the blood vessels more prominent. Lack of sleep, stress, and fatigue can worsen the appearance by causing fluid retention and dilated blood vessels.

Jowls refer to the sagging or loose skin that forms along the lower jawline, often appearing as a result of aging. As we age, the skin loses collagen and elastin, leading to a decrease in skin firmness and elasticity. The underlying fat and muscle structures also weaken, causing the skin to droop. This results in the formation of jowls, which can be more pronounced in individuals with a naturally weaker jawline or facial structure.

Sagging skin is primarily caused by the natural aging process, as the production of collagen and elastin—proteins that provide skin with firmness and elasticity—declines over time. This loss leads to skin loosening and sagging. Sun exposure accelerates this process, causing photoaging and further weakening of the skin’s support structure. Other factors, such as smoking, dehydration, poor diet, and a lack of sleep, can also contribute by damaging the skin’s ability to regenerate and maintain moisture.