I'm curious why the effects of Botox vary from person to person.

I've noticed a lot of people around me getting Botox lately, so I've become interested and have been looking into it. However, I've heard that even when getting the injection in the same area, the effects last a long time for some people while wearing off faster than expected, so I'm curious about the extent of individual variation.

I have relatively developed facial muscles, so I am concerned that certain areas stand out more than others in photos. I am considering using Botox to reduce muscle movement, hoping it might soften my facial expression. However, I am hesitant to get the procedure without careful consideration, as I have heard that the results can vary depending on face shape.

For those who have actually received Botox, what criteria did you use to decide on the treatment site during the consultation? I am curious whether simply stating the desired area is sufficient, or if the medical staff checks the muscle condition to recommend an appropriate site. I would also like to know if the required dosage varies depending on muscle mass, even for the same area.

I am also curious if the feeling was different the first time I received Botox compared to the second time. I would like to know if repeated treatments help the effects last longer, or conversely, if the results return to normal after a certain period.

Prices vary significantly from clinic to clinic. For Botox, would it be better to choose a place that provides thorough consultations rather than just the cheapest option? It would be really helpful if those who have experienced this firsthand could share their criteria for selecting a clinic and whether they were ultimately satisfied.