Dynamic wrinkles occur when we use our muscles to form facial expressions. During facial expressions such as smiling and frowning our muscles contract and cause our skin to wrinkle.

For example, when we smile our eye wrinkles become prominent and when we frown the vertical lines between our eyebrows become noticeable. When we are young our skin springs back to its original position when we finish making the facial expression (at rest) but as we get older the dynamic wrinkles remain on the skin to form static wrinkles.

Static Wrinkles