Xeomin is another neurotoxin – it is in the same category as Botox and Dysport. It has been used in Europe for many years. It has less proteins then Botox, possibly reducing the chance of resistance. If Botox or Dysport isn’t working, Xeomin may be an option. Xeomin works like Botox and Dysport to block nerve impulses to the injected muscles but the difference is how it is manufactured. Xeomin does not have complex proteins like the others.