Your body is constantly growing and regenerating new skin as the outer layer of skin cells die and slough off. Your facial skin is no exception to this process, but it's more delicate than the skin on the rest of your body. For this reason, it's important to use an exfoliator designed specifically for facial skin. Without proper exfoliation, facial pores can become clogged by dead skin cells, moisturizers and cosmetics, resulting in infection and skin irritations. As with other skin care products, it's important to take note of your specific skin type--whether dry, oily or combination--and purchase an exfoliator that's right for you.