Botox trend in Korea

Korea is well-known for an appearance-oriented society, which I think it’s so ingrained that it got to the point where it can be no longer changed. So there are a bunch of plastic surgery clinics nowadays (I don't think there's any grammatical errors in this sentence but it's better to add a time period for it to be easier to understand.) and there are even a few famous areas for plastic surgery. If you decided to use public transportations transportation ("transportation" is an uncountable noun, so don't add -s), you can see a lot of advertisements to encourage (For this case, this is still happening, so the verb tense must be continuous) encouraging people  to have plastic surgery. In the subway ("subway" is a noun that requires a determiner), it’s common to see big billboards to advertise advertising (Tip: If you think it's still happening, conjugate the verb into continuous tense) their plastic surgery clinics. Other than this plastic surgery, there are also many different types of aesthetic procedures for looks. One of things is Botox (Botox is a proper noun, so always capitalize the first letter) and it has different kinds of treatments. For example, people get Botox injections to combat wrinkles or either erase or smooth their existing wrinkles. Not only people who are in their 30's (This is acceptable in casual writing but add an apostrophe if you will use this in formal writing.) and 40's but young people in their 20's are getting these Botox injections. On top of preventing wrinkles, there are different kinds of Botox for square jaws , cheekbone, calf muscle, forearms and belly, etc. Actually, (Add a comma after an adverb if it's the first word of the sentence.) you can get Botox injections into wherever you want. In particular, getting Botox into your jaw is really common because girls usually want to look like western people, having a (People tend to forget to add determiners before the noun because of adjectives. You can try to be more aware soon.) more slim face. Once you get this Botox, it usually lasts for 6 months, which means it’s not permanent so once you decided to get this injection, you should keep getting it on a regular basis. But there’s a flaw in this Botox as the more often you get, you start to have a tolerance towards it. I’m curious to (This verb needs a preposition after since you are referring to a specific topic. Alternatively, you can just say 1. I'm curious, if... 2. I'm curious to know if...) if we get Botox injections (When common nouns are being referred generally, change it into plural form), it will will it affect us physically later in our life? (When you're speculating or wondering about a possibility with the word "if," the second clause must be an interrogative clause.) I think it’s safer than plastic surgery as you don’t get it done with knife under the knife (There's an idiom in English called "under the knife" which means getting plastic surgery. If this is what you mean, then this is the proper way of saying the idiom. If you literally mean "knife," then add the determiner "a" before the noun.) but in the sense that you get medications that you don’t even know well.