I had 3D cheekbone reduction at the age of 20 and there were no side effects like non-union, but I developed unavoidable sagging cheeks. Rather than a review, I will explain what I have felt so far. When the plastic surgery boom was in full swing, I posted pictures of the faces of famous celebrities such as Hani, Shin Se-kyung, Suzy, and IU on social media. After seeing before and after pictures of contouring going around, I decided to get surgery thinking, "You can look this pretty, a lot of celebrities do it too, so it must be okay." But I'm not lying, you can see it after the surgery. The celebrities I mentioned earlier got pretty through weight management, meridians, and simple procedures. It's not plastic surgery. Naeun, Kang Min-kyung, Choi Jeong-won, Baekhyun, Yoon Kyun-sang, Park Min-young, etc. have had plastic surgery and are constantly receiving lifting. Lifting also makes the skin sagging in the long run, so if you look at Choi Jeong-won now, even though she got lifting, she has reached her limits and is sagging more than people of the same age who didn't get lifting. You can see that Na-rae Park's sagging cheeks didn't get worse because she shaved her face and didn't do any additional lifting or fat grafting, and if you compare Na-rae Park's past photos, her face is clearly flat and saggy, making her chin look angular. The bottom line is that her facial contour is absolutely fine. Don't do it. You can see YouTubers like Han Areum-song, Jo Hyo-jin, and Oe Jil-hye becoming really pretty with facial contouring and no sagging cheeks, but sagging cheeks will come someday, so there's nothing you can do about it. They seem to have used lifting during surgery, and these days, they do it without cutting the retaining ligaments. That only reduces or slows down the sagging of the cheeks. Since there is no space for the skin and muscles, they have no choice but to sag down. As skin elasticity decreases as we age, the strength that holds the remaining skin and muscles weakens, causing sagging at a faster rate than others. The important thing here is that the speed of sagging accelerates. For example, if the speed of sagging at first was 1.5 times that of others, as skin elasticity decreases as you age, it doubles or triples. That's why I can't stand it and lift. Please don't do it. I hope there are no more victims like me.