Botox and Dysport are similar products which work using the same active ingredient, but have varying formulas. Botox has been available in the U.S. for longer, and is therefore more widely known. Some patients may select one product over the other based on their personal preference, and your injector can help you choose the best option for you. On average, Dysport results tend to be more immediate, but Botox results tend to last slightly longer. Dysport also results in softer results than Botox, which for some make it appear more natural for first-time patients.