If you are weighing Dysport against Botox, the question is mostly about timing. Cleveland Clinic names the cause of the gap and what it changes for you.
Same family, same targets
Cleveland Clinic says that Dysport and Botox are both injections made from botulinum toxins.
Cleveland Clinic adds that neuromodulators like these use botulinum toxin to help treat frown lines, forehead creases and crow's feet near your eyes as well as many other areas of the face.
The American Society of Plastic Surgeons keeps a botulinum toxin overview for readers who want a second professional description of the category.
Where the two differ
Cleveland Clinic says the main difference is the potency of trace proteins found in these medications, so Dysport may offer faster outcomes, but Botox may last longer.
Read "may" literally. It describes a tendency, not a guarantee for your face, and your own result is the one that counts.
How long to plan for
Cleveland Clinic says the effects of these neuromodulators last up to six months. Plan around that outer limit, and ask your injector what to expect for you.
Choosing, and what to do after
Choosing between the two is a planning decision you can make slowly. Ask the injector which product they recommend for your target area and why.
A result you already have is a different matter. Contact the clinician who treated you rather than guessing from an article. For product detail on one of the two, see Cleveland Clinic's page on Botox Cosmetic uses and side effects.