Concerns about square jaw Botox resistance due to periodic procedures and Xeomin Botox consultation

Since my mid-twenties, I have been self-conscious about my angular jaw muscles, so I have been consistently receiving square jaw Botox injections every six months. However, recently, I feel like my muscles are growing back quickly even though it hasn't been long since the injection, and the slimming effect on my jawline doesn't seem as tight as it used to be. This has made me suddenly anxious, wondering if I might have developed chronic Botox resistance. I did some research and found that switching to Xeomin, a pure Botox product with the complex proteins that cause resistance removed, would allow me to see consistent results without worrying about resistance. I would like to know if Maypure offers Xeomin square jaw Botox treatments. Please let me know if switching products while I am in a situation like mine, where resistance is already suspected, would allow me to see the effect of my jaw muscles shrinking smoothly again, just like before.