Can you feel a difference between domestic and imported square jaw Botox?

Recently, I noticed my jaw muscles seem a bit developed while looking in the mirror, so I am considering getting Botox. I saw a price difference between domestic and imported products, so I am curious if there is a significant difference in the actual effects for those who have tried them. Since I heard that resistance can develop, I want to choose carefully. I would also like to know if Maypure guarantees the use of genuine products and the correct dosage. Considering the cost-effectiveness, would the domestic product be better? I would appreciate your advice.