It's a filler that intentionally makes the jaw look square.
They inject the medicine with a syringe into the soft area right in front of the ear.
When I saw the doctors' Instagram video,
they jabbed it a few times and it started to swell right away, creating a square jaw.
I see a lot of comments about how much it costs for American women and how long it lasts, so
it's clear that they have a square jaw. This is so popular haha