Dysport is a simple, effective, non-surgical treatment that works by relaxing facial muscles on the forehead, thereby reducing and smoothing away frown-lines and wrinkles. Like Botox, Dysport is administered via an injection at the site of forehead wrinkles. According to Ipsen Biopharm Ltd., which makes Dysport, the FDA based its approval on clinical trials involving about 2,900 people at 80 study sites. One clinical trial showed 93%-95% of participants noticed an improvement in the appearance of forehead wrinkles within seven days after treatment, and multiple treatments produced effects that lasted for more than 13 months.