love going fillers as much as I love putting on my make up, because it is an art!
Chances are you need a combo of Botox and fillers. Botox should be placed carefully because it can cause a "joker smile" if you are not a candidate for it! Therefore, I always have patients smile really big to see what the effect of the botox will be on their smile before we even discuss this as an option.
Fillers are great because they support the angles back up! Most people think that they need to put fillers just in the area of the sagging! Not true! There are "vectors" to sagging. IF you find the area of the vector and place fillers there, you create a bigger lift to pull up the parts of the face sagging. Then once you lift from there you also add fillers to the M-lines to enhance them.
You NEVER want to have too much fillers on the lower face- it causes an aged appearance because young faces are like a nice triangle and older faces are an inverted triangle. So, simply put, enhance the upper face can help make a natural restoration to the sagging angles of the mouth.
I always determine which combo of fillers to use based on the consolation: as my patients are talking I watch them animate their faces. The answer comes to me based on their unique anatomy! It really is so satisfying to see their happy faces after!
Best of luck!