I would like to inquire about the treatment cycle and side effects of Botox for forehead and frown lines!

Hello! Lately, I've been concerned that the fine lines on my forehead and between my eyebrows seem to be deepening whenever I make facial expressions, so I am considering wrinkle Botox. Since this is my first time getting Botox, I am excited, but I am also a little worried that my facial expressions might look unnatural. For those of you who have received wrinkle Botox, when did you notice the wrinkles smoothing out or when did you start to see significant effects after the procedure? I am also curious about the most appropriate interval for follow-up treatments. I would also like to know the differences between domestic and imported Botox, as well as concerns regarding resistance. I would be grateful if those of you who have experienced this could share honest and detailed advice or experiences regarding your overall satisfaction after the procedure and the level of pain during the treatment!