Some people have experienced quicker results with Dysport, noticing a reduction in wrinkles in only 2-3 days. The results of Botox generally take around a week to appear, but both injectables reveal their peak results at around 2 weeks. Result times vary from person to person, and are also affected by how recently you have received injections. When looking at how long the results last, both Dysport and Botox last around 3-4 months.