Understanding Wrinkles
Facial Wrinkles: Classification, Causes And Coping Strategies I. Classification (1) Dynamic wrinkles Frontal wrinkles: also known as forehead wrinkles, are horizontally distributed on the forehead. When we raise our eyebrows upwards, when we are surprised, or when we are thinking, the frontalis muscle contracts repeatedly, and folds appear on the forehead skin under the […]