Overview
Fine lines and wrinkles are among the first signs of ageing, due to muscle movement in the most active areas of the face and the skin’s ageing process. More specifically, fine lines are caused by the muscle contracting (smiling or furrowing your brows). These fine lines then disappear when your muscles relax.
Over the years, the fine lines from smiling and other facial expressions become static and don’t disappear when your face relaxes. Wrinkles occur not only due to years of muscle use but also to the natural ageing process, with less collagen, elastin, and fat pads beneath the skin.