The appearance of fine lines can be daunting for many people. They a natural part of aging and more prominent on skin that is regularly exposed to the sun, such as hands, face, neck, and arms. As skin ages, it loses its flexibility, which means that it no longer has the ability to spring back in place. In our faces, each time we use a facial muscle, grooves begin to form beneath the surface of the skin. These grooves will eventually become permanent on your face. Genetics also play a big role in fine lines developing, as well as other factors, such as pollutants and smoking.