How often is filler injections usually recommended? I'm wondering if it's okay to get them frequently.

Lately, I feel like my face doesn't have the same volume as it used to, so I'm considering getting fillers. I've also become interested because many people around me have told me that I look much younger after getting them. I've heard that just one filler treatment can significantly change your overall impression, especially for areas like nasolabial folds, the chin, and the lips. However, now that I've actually looked into it, I'm quite confused because there are so many types of fillers and their durations vary.

What I am most curious about is the recommended frequency of fillers. Opinions vary slightly from clinic to clinic. Some places recommend getting a touch-up once after the initial injection, while others suggest managing it by adding more every few months while monitoring the results. I’m not sure which is correct. Does the recommended frequency usually vary significantly from person to person? Or is there a specific average recommended interval?

I've also seen comments saying that getting fillers too often can cause the skin to sag or make the face look unnatural, and I'm wondering if that's true. I initially want to get just a little bit injected for a natural look, but I'm worried because I've heard that many people get greedy later and keep increasing the amount of filler. In particular, since I've heard that lip fillers fade quickly over time, I want to know if I need to get treatments frequently to maintain the results.

Also, does the duration of the effect vary significantly depending on the type of filler? I'm curious about the difference between domestic and imported fillers, and I'm not sure if good longevity necessarily makes it a good choice. Some people say they are extremely satisfied after getting fillers, while others say their skin became bumpy, so it seems like I really need to do a lot of research before the procedure.

For those who have received fillers for the first time, I am also curious to know which areas you were most satisfied with. I am considering treating my nasolabial folds and chin, and I would like to know if the difference is significant enough to make my entire face shape look different. I would like to hear from people with actual experience regarding recommended treatment frequency, duration, and side effects so that I can make a careful decision.