Is there a big difference between domestic and foreign Botox?

I have mainly used domestic Botox, but I am considering getting Botox again for my glabella and forehead. I am curious if there is a noticeable difference between domestic and foreign brands, and if there are differences in duration or how much they spread. I also wonder if the speed at which the effects appear and the naturalness of the results vary by brand. I am particularly worried because I have heard that getting glabella and forehead Botox together can make facial expressions look unnatural. Please recommend which Botox is more natural and lasts better. I am also curious if there are any issues with resistance if I continue using domestic Botox, and if switching to foreign brands would yield better results.

I am also curious about the duration of bruising or swelling after Botox, and the extent to which daily activities such as exercise or saunas are restricted. I would like to know if there is a significant difference in effectiveness depending on the dosage or the interval between treatments. I am wondering how often it is appropriate to get Botox for the glabella and forehead separately, and if getting it too frequently is harmful. I would also appreciate your opinion on whether the effects of Botox improve with repeated treatments compared to the first time.