I got chin botox at ㄷㅌㅇㅅ located in Apgujeong. Uniquely, the injection is given after identifying the muscle location and thickness using ultrasound. (They even show you muscle movements and injection needles.) However, the price seems to be about twice that of other places. Although it is a simple procedure, it was nice that the director consulted directly with me, and I think it is the most effective of all chin Botox treatments so far.