Dysport™ represents the first new botulinum toxin type A treatment option in eight years to reach the U.S. market place. It is the first competitor for BOTOX® Cosmetic and Dr. Egan was involved in the scientific studies that brought it to the U.S. market. The experience from the studies done by Dr. Egan has shown that Dysport™ can produce longer lasting results of up to 6-8 months.