He was selected to be one of only 16 physicians in the United States to evaluate Botox in the FDA study that led to its approval for cosmetic uses. Dr. Perkins has performed thousands of Botox injections and has pioneered the threading technique for maximum effectiveness. Furthermore, all of the injecting clinicians at Evolutions have been personally and extensively trained by Dr. Perkins on facial anatomy, Botox theory, optimal injection locations/techniques, and practical application.