I did Liftera twice, 3 months apart. The first time, I did 3,000 shots of Pen Type and didn't feel any difference... haha. Since it was an event, I did 100 Bar Type and 3,000 Pen Type shots this time. I had the treatment done by a different doctor, and I felt like there was some change. It's subtle, but it feels a bit like it's really burning the practitioner's hand. Haha. My skin type is thin and I don't have facial skin, but I felt a bit of sagging on my chin, so I think it was more like it because it was done as a preventative measure. And the bar type really hurts haha. It doesn't hurt at all. In fact, the one that was recommended was the in-mode forma, so I'm going to try the in-mode forma this month!!