Dysport is a neuromodulator similar to Botox. Like its competitors, Dysport works by temporarily blocking the communication between nerves and muscles, to stop injected facial muscles from contracting and wrinkling the overlying skin.
The process of blocking muscle contractions doesn't damage skin or muscle, but it gets rid of crow's feet, frown lines, and other creases that appear when you make facial expressions. Beyond smoothing existing wrinkles, the treatment can also be used preventively, to minimize muscle movement and prevent future wrinkles and forehead lines.