The use of botulinum toxin (BoNT) in aesthetic treatments is now firmly established. The patient population receiving regular injections for the treatment of wrinkles is growing steadily as people find out how simple, quick, relatively painless and effective the treatments can be. Accurate data on the extent of usage in the UK is difficult to come by, but the information from different societies paints an interesting picture of worldwide use in an extensive range of patient groups. For example, the American Society for Plastic Surgeons (ASPS) each year publishes figures canvassed from their members (Figure 1), which indicates a 65% increase in BoNT treatments in the last decade.1
Over the years, enterprising clinical investigators have undertaken a wide range of tests for the different uses of BoNT, driven by both their therapy interests and their wish to give patients further…
