I'm asking for a review of the leg lifting procedure.

I have an inquiry about Onda Lifting. I worked hard to lose about 7kg, but why is the skin under my chin sagging and wrinkled, lacking elasticity? I thought losing weight would give me a sharp jawline, but instead, my skin has stretched out like leather, and I get stressed every time I look in the mirror. I searched on YouTube and saw that for this kind of sagging skin, Onda Lifting is the surefire way to tighten collagen and define the line, much better than radiofrequency. Is that true? Honestly, I’ve never had laser treatments before, so I’m scared. If anyone has had Onda Lifting and their skin, which used to be like a deflated balloon, has tightened up completely, please share your testimony. To be frank, surgery is expensive—in the millions of won—and it’s difficult for me to take a long vacation, so I’d prefer to hold out as long as possible with non-surgical procedures.