Wrinkles under the eyes are wrinkles that can develop in this area over time. It is precisely a decrease in the density of the dermis (2nd layer of the skin) which can be due to repeated facial expressions or harmful factors such as exposure to the sun, smoking, alcohol consumption and aging in general. They are signs of aging and can get worse with age unless you try to prevent them. Let's take a look at the different causes of wrinkles under the eyes. http://ipsnews.net/business/2022/08/29/rc-skin-growth-factor-reviews-revitalize-skin-is-it-safe/