Introduction What is Nasolabial Filling? If we say what is nasolabial filler, it is an aesthetic procedure applied to soften the nasolabial folds, which extend from the edge of the nose to the corners of the mouth and are known as smile lines. Hyaluronic acid-based fillers are injected into the nasolabial folds to increase volume and reduce wrinkles. This procedure helps to achieve a younger and more vigorous appearance...