I just got it because it was cheap... but it definitely reduced things like teeth grinding a lot compared to when I hadn’t had it, and it turned out well without cheek hollowing. I think it’s best to go in without being overly greedy.. ㅠㅠㅠ I definitely hear things like, “You lost weight,” a lot more than before I got it lolㅋ I think I paid somewhere between 30,000 and 50,000 won.
Like 1