Dark circles and bags can be a result of genetics, lifestyle or a combination of the two. An under eye cream, gel, moisturizer, or treatment is particularly useful in addressing the delicate, more fragile skin under the eye. The under eye area is the first place to show signs of aging and an under eye product helps to address fine lines, and wrinkles, in addition to dark circles and puffiness. This type of men's skincare product is applied after cleansing and can be used morning and evening. These products are your best defense against under eye issues.