It first started in 2017. I lost weight from my original slim-average body to a skinny body after entering college, but my face was broad and my chin was wide . When I first learned about the existence of Chin Botox, I went to the cheapest clinic in Gangnam Station at the time and got 100 units of domestic Botulax . ;LOL However, it is not possible to continue to see the dramatic effect of the first time after undergoing several treatments per cycle... As the muscle shrinks and the period to revive is gradually shortened , the most recent procedure was to move to a hospital and try a different product, and the effect after 2 weeks I 'll post a review when it appears.. I have no regrets and I'll be right for the rest of my life hahaha