I got lip fillers (corners of the mouth, lip volume) at a hospital in Yantai 2 years ago, and even though a lot of time has passed, there are still some left. There is no foreign body sensation and the filler treatment lasts longer than expected~ Aegyo filler was also done at a hospital in Apgujeong around that time (in a different place than the lips), but it remains in the center. Perhaps because the skin around the eyes is thin, it is only partially visible~