
Hyaluronic filler is placed in an amount agreed in consultation, so the result stays even and natural when you talk and smile.
Cheeks, lips, chin, and the folds beside the mouth are looked at together, because adding volume in one place changes how the others read. The product, the depth, and the amount are chosen for that face, not from a standard map. You can start with a small amount and review it once the swelling has settled, rather than deciding the final look on the day.
How long a filler lasts, and whether it suits your concern, is part of the same conversation.