The first signs of volume loss occur from the mid and lateral face. Losing volume from the mid face is sometimes the cause of heaviness on the nasolabial folds. This is because the fat pad pools up behind the retaining ligament.
Replacing what was lost and restore the cheek, aiding in lifting the skin and fat pads back up. If the cheeks have already been filled, the temple may need to be addressed, along with the pre auricular, and lastly, the nasolabial fold itself may be treated, if it still presents after treating the mid and lateral face.
Sometimes, the nasolabial fold is just a symptom, but the cause is coming from the mid and lateral face. If the cause is not addressed, sometimes, it can just “mask” the symptom.