I put in a small amount last summer and it's still there. If you have a long chin, I personally don't recommend chin filler. After I got it done, it was a bit pointy, so it got better after it fell out a bit . If I take a photo from a distance with full makeup, I get good photos, but my chin looks much longer than before, making me look older. Before, I had a longer chin in the middle of my face, but it didn't look long because there was a shadow, but when I got filler, the shadow disappeared and my chin was back to my original chin length. It stands out and becomes longer. It's like a cucumber, but it's nice to look slimmer. If there's an advantage, there's a disadvantage. ㅠㅠ