I also got injections in my temples because of teeth grinding. My masseter muscles are also quite large, so the dose was high, but Jeuveau is definitely expensive and was a burden, so I got a domestic product instead. I got the injections once about every 6 months, and the procedure itself was over quickly, so I was satisfied. It seems the effect is best for about one month.
Separate from the Botox effect, there is basically no doctor consultation unless requested, and I did not like that the doctor I actually consulted with and the part-time doctor who performed the procedure were different people. For a factory-style place, the price is not even that cheap, so I do not recommend it.