Square jaw Botox has been consistently corrected for several years. The masticatory muscles are well developed, and every time I hit it, I saw a great effect. As for hospitals, I just went around looking for cheaper ones. They were always made in Korea, and the higher the capacity, the more dramatic the effect. The front and sides are noticeably slimmer. There are no side effects, but as I get older, I feel like I have a hard time chewing food when I get hit with a slight dent in my cheek? But I think it's natural because it paralyzes the muscles . In the long term.. there may be sagging or something like that, so I'm going to take a break for a while haha