What Causes Smile Lines?
Smile lines are caused by the gradual reduction of collagen and elastin over time. This can occur as a result of factors such as the natural ageing process and excess exposure to the sun that has caused damage to the skin. When volume is lost in the upper face and fat pads in the cheeks, this can make the nasolabial folds more prominent. When collagen and elastin levels drop, the skin also becomes more prone to developing lines and wrinkles with certain expressions, particularly when they’re performed repetitively. Smile lines around the mouth, as their name imply, are made more prominent with repetitive smiling.
