Hello, how have you been? Its already been 1 year and 7 months since I had self-dermis chin surgery ^^ Time really flies!! ) It is definitely different from fat, so it is clear that the absorption rate is low. I would say that the dermis is ideal for chin surgery haha I tried it and there is no foreign body feeling and the chin volume is definitely alive. I know there are a lot of people, but I also received sharing and underwent chin surgery, but now I think I will go back to my ideal state without any changes.