Is there a way to make the corners of the mouth look less sunken without fillers?

Lately, I'm bothered by the fact that the corners of my mouth look a little sunken when I'm not smiling.

At first, I considered fillers, but I felt a bit hesitant about a procedure that involves putting something into my face.

However, if I leave it as it is now, the corners of my mouth catch my eye every time I take a picture.

I am looking into whether lifting or other skin procedures can improve the condition to some extent, but there is so much information that it is actually difficult to make a decision.

If anyone has chosen a procedure other than fillers due to similar concerns, I am curious to know what method you received and how satisfied you were.