I had 3 contouring injections on my jawline (double chin) around October of last year at Yuline. To be honest, it didn't work for me much. ㅠㅠ I don't have a lot of fat, and my chin is short, so my double chin looks more structurally significant, so I think it didn't work much . That's why I'm looking into liposuction as a last resort.