I got Botox for my square jaw at Seomyeon ㅈㅇㄹ.
I got it 3 times and paid 50,000 won. I used to have pain when I ate hard things because of my temporomandibular joint, but after getting the treatment, it completely disappeared.
I think my jaw muscles have also shrunk a lot. Now, even if I don't get the treatment, the muscles aren't as bad as before.