Without experimentation, there would be no progress, and that’s especially the case when it comes to science. The FDA first allowed the study of botulinum toxin’s effect on health conditions more than 50 years ago. Decades later, it was studied, then approved, as a treatment for wrinkles; today, Botox is possibly the most popular aesthetic procedure worldwide. It takes significant time to understand what innovative treatments are capable of and even longer to get them regulated and approved as an actual therapy. So when the FDA issued a warning letter against exosome treatment—one of today’s buzziest procedures—many aesthetic providers took it with a grain of salt. Here, with the help of exosome experts, we’re breaking down exactly why this treatment is being referred to as “the wave of the future.”