A wrinkle is a fold, ridge or crease in the skin which typically appear as a result of aging processes. Wrinkling in the skin is caused by habitual facial expressions, aging, sun damage, smoking, poor hydration, and various other factors. Depletion of water in the body, as occurs with dehydration, can also cause this puckering of the skin.
Wrinkles can be classified into dynamic and static wrinkles. 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. With progress of age dynamic wrinkles can turn static. Static wrinkles are the wrinkles and folds that are present at rest or when we are not forming facial expressions. They develop as we get older because natural substances such as collagen, elastin and hyaluronic acid that provide the skin with structure and volume decrease with age. The loss of skin structure and volume means that the skin is less able to spring back to its initial position after facial expression, and as a result static wrinkles and folds form.
Treatment of wrinkles include:
1) Fractional laser
2) Botulinum toxin
4) Chemical peeling