I'm planning to get some Botox, but I had a mental breakdown comparing prices.

I'm planning to get square jaw Botox this time, but I had a mental breakdown comparing prices...;;

Some places charge less than 10,000 won for Botox, but others charge nearly 100,000 won? I mean, it's the same Botox, so why is there such a huge difference?

Honestly, I feel uneasy about places that are too cheap, worrying they might mix up the drugs or not stick to the proper dosage. Aren't there a lot of rumors about that? But then again, spending a fortune just for one Botox injection makes me feel like a sucker...

Is it the unwritten rule to just go to a cheap, factory-style place, or is it better to pay a little more and go to a place where the director takes a thorough look? Where does everyone get theirs done? Thanks in advance for your answers, and have a great day!