I heard a lot that it was a factory type, but I was satisfied because it was more effective in improving double chin than I expected. I paid 70,000-80,000 won for 3 sessions, and I didn't like the fact that the director changed every time I went, but I happened to meet a good person and saw the results well, so I finished the 3-session treatment. I don't think I have any intention of going to a tea room.