Those lines are referred to as marionette lines and they are often treated using injectable dermal fillers. There are a number of fillers that can work well in this area, but I particularly like Restylane Defyne because it fills in the lines effectively without limiting the natural movement of the face. Fillers are quick to administer and do not require any downtime afterward. Results can last anywhere from 6 months to 1 year in most cases. If you want a longer-lasting result, you will likely need to look at a surgical facelift, possibly combined with facial fat transfer to the midface, to achieve a more youthful contour. Improvements gained from this approach can last up to 10 years or even longer in some cases. I advise you to schedule a consultation with an experienced, board-certified facial plastic surgeon for a comprehensive examination and detailed discussion of your concerns and goals. With a customized treatment plan, you should see a result that is both natural and meets your expectations.