With increasing age, the skin loses moisture, thereby becoming less elastic. Small wrinkles initially form which, if no measures are taken, become increasingly deep, and accompanied by other small wrinkles. For wrinkling, mimic wrinkles are distinguished from orthostatic wrinkles.

Mimic wrinkles arise through contractions of the facial musculature, Folds on the forehead are very common, as are the so-called laughter lines around the mouth and eyes.