I'm worried about sunken cheeks. How long does the effect of Belotero last?

As I get older, my cheeks and nasolabial folds have sunken in, making my face look so aged and tired. I feel like I absolutely can't let this continue, so I'm looking into fillers that are said to fill in the areas naturally. I am a bit worried about fillers, but I've heard that Belotero, a premium imported product, has excellent adhesion, so there is no foreign body sensation when making facial expressions, and it looks incredibly natural. However, since it is so expensive, the biggest concern seems to be how long the effects will last after just one injection.

I would be so upset if I paid a lot of money for it only for it to completely disappear quickly. I know it varies depending on the area and individual skin type, but if those of you who have received treatments at Maypure could share your experiences regarding the average duration of Belotero, it would be a huge help in planning my budget!