Hi AlexInThePalace! Thank you for your question. The best option really depends on the main cause of the fullness in your lower face. If the roundness comes mainly from prominent jaw muscles, then Botox to the masseters can help slim and contour the lower face without surgery. The results are temporary but can last several months and be maintained with periodic touch-ups. If the fullness is due to excess buccal fat (the fat pads in the mid-cheek area), buccal fat removal may be more appropriate. There are patients that can benefit from getting both treatments. I recommend an in-person consultation with a board-certified plastic surgeon who can assess your facial anatomy, muscle activity, and fat distribution to help you choose the safest and most effective long-term approach.