what are laugh lines
The nasolabial folds, commonly known as smile lines or laugh lines, are facial features. They are the two skin folds that run from each side of the nose to the corners of the mouth.It is defined by facial structures that support the Buccal fat pad. They separate the cheeks from the upper lip.The term derives from Latin nasus for nose and labium for  lip .hey are the two skin folds that run from each side of the nose to the corners of the mouth. It is defined by facial structures that support the Buccal fat pad. They separate the cheeks from the upper lip. The term derives from Latin nasus for nose and labium for  lip .