Unlike Botox, Dysport’s onset can begin 24hrs after injection, with a 90% response by day 7. The results typically last for 4 to 6 months, and peak in 1 month. The effects of Botox are typically seen between 2 and 10 days, with the full effect in 14 days, and the results typically lasting for 3 to 4 months, peaking at 2 months.

There is also a difference in the potency units, dosage and dilution of Dysport. They are not interchangeable with other preparations of botulinum toxin products and, therefore, their units cannot be compared to or converted into units of Botox.