The difference in unit prices for Botox.

I am so fed up with how my jaw muscles under my ears protrude so prominently every time I look in the mirror, making my face look square from the front. When I touch it, the flesh that bulges out when I clench my teeth feels incredibly thick and hard, and I’ve been told that it is all muscle. I am looking into prices to significantly reduce the volume of these muscles, but I am confused because the price variation for Botox varies more than I expected between clinics. I am wondering if the price difference between domestic and genuine imported products is due to factors like resistance or the duration of the effects. Since my jaw muscles are so developed, I feel like I need a high-volume injection. I am considering going with a safe imported product, but the cost per session is so burdensome that I am hesitating. I would appreciate it if those who have actually tried both domestic and imported Botox could share their honest comparison reviews.