State laws vary about who can legally inject cosmetic treatments such as Botox and Restylane. For this reason, patients really have no idea who is doing the injecting, and it's up to the public to carefully research credentials, experience, and quality. The safest thing to do is to pursue these treatments with one of the four core physician specialties in cosmetic treatments: board-certified dermatologists, plastic surgeons, facial plastic surgeons, and oculoplastic surgeons. That means an M.D. or D.O. board-certified IN one of these fields. Not just a "board-certified doctor".
Very tricky. Please contact me if you would like help understanding someone's credentials and what that means for their background.