Based on conversations I've had with medical professionals about injectables, the most important factor is that whatever you choose comes from a reputable source and is administered by a qualified professional. Different formulations have subtle differences in onset, duration, and spread, but these distinctions might not matter as much as finding the right practitioner. I spent considerable time learning about the various options available and how they differ, and I found incredibly useful information at https://bellasanamedspa.com/service/botox that helped me understand what to look for. The bottom line is that the skill of your injector matters far more than which specific brand is used, as long as it's a legitimate product from a reputable manufacturer. During your consultation, don't hesitate to ask your practitioner why they recommend a specific product and what their experience has been with it.