I got botox on my chin because of my square jaw. It was a square jaw because of the bone rather than the original flesh, and there weren't many muscles that stood out when I bit into this chin, so I knew it wouldn't have much effect, and as expected, I didn't see a big effect . I'm going to be satisfied with being hit. People like me who have flesh x bone o muscle x that comes out when you bite it, I don't think you need to get jaw botox.