As we age, fibers in the deeper layers of the skin thin and change. The skin loses its elastic nature, and it begins to sag and wrinkle. When muscles move the skin of the face, they cause lines which eventually become permanent. Exposure to the sun, smoking, alcohol use, and hereditary factors also affect changes in the skin.
In order to smooth lines or wrinkles, the upper layers of skin must shed or peel to allow new, smooth skin to grow from underneath. For this to happen, some kind of injury to the upper layers of skin must be induced. Chemical peeling irritates the skin with the application of a chemical solution resulting in a superficial reaction with subsequent flaking and peeling of the upper layers of the skin. When the new skin emerges in a week or so, it will be red for awhile, gradually getting lighter until it reaches its normal color. This stage may last from a couple of weeks to a couple of months, depending on the severity of the wrinkles and degree of correction.