They are the two skin folds that run from each side of the nose to the corners of the mouth.

They are defined by facial structures that support the buccal fat pad.

The term derives from Latin nasus for "nose" and labium for "lip".

[6] Dermal fillings may be used to replace lost fats and collagen in this facial area.

[7] Facial exercises give effective results in erasing the appearance of nasolabial folds.