How much should I expect to pay for Botox for frown lines?

I have a bad habit of unconsciously squinting whenever I work in front of a computer monitor. ㅠㅠ This morning, after washing my face and looking in the mirror, I saw a deep wrinkle etched between my eyebrows in the shape of the Chinese character '川' (cheon), and I almost screamed. Haha. My foundation settles into cake every time I apply makeup, making me look so old, and it's so stressful that I think I need to get an injection right away! Around the area between my eyebrows... Botox I'm wondering if getting it definitely fixes my frowning and smooths out my wrinkles. Since it's around the eyes, I've heard scary urban legends that if you get it done incorrectly, it makes it difficult to open your eyes or makes your expression look very unnatural, so I'm super scared. I know it might vary by branch, but usually Botox I'd like to know the approximate cost per session lol. For deepened frown lines Botox If any of you have seen serious results, I would be really grateful if you could leave lots of advice and tips.