When I looked at the app, it looked like an injection procedure called Ultracol. It looked like a procedure to fill in nasolabial folds from the nostrils to the wrinkles around the mouth. It 's not like a filler, but it promotes collagen production. Have you ever received this? I heard that if you get the filler wrong, you'll end up in a bad situation, so I'm thinking of doing this instead of JI.ㅠㅠ