As I got older, I got a double chin, so I was worried about breathing, but I got a laser treatment called Velody, which is said to give elasticity as well as breathing effect. Looking at Velody's advertisements and reviews, it seems that the effect is greater on the body side, such as hip-up and sagging breasts.
Anyway, I did a double chin, but I slept a little bit I was anesthetized and treated and there was no pain. There is also an effect, but this is a bit ambiguous.
I thought the chin would be thinner, but it's not that neat, it just feels a bit tidy?
I thought I should try it next time I do hip-up, but I haven't done it yet