Book excerpt: A Practical Guide to Botulinum Toxin Procedures is one of four books in the new Cosmetic Procedures for Primary Care series. This series offers guidance to primary care practitioners who wish to expand their practice to minimally invasive cosmetic procedures. Whether the physician is just getting started or well versed in aesthetic medicine, this series can be used as a routine quick reference for current aesthetic procedures that can be readily incorporated into office practice. The series will put these cosmetic treatments into the hands of the physician the patient knows and trusts the most, and will bring primary care practitioners increased autonomy, improved patient satisfaction, and added reimbursement. This book provides thoroughly illustrated step-by-step instructions on botulinum toxin injection procedures and advice on managing common issues seen in follow-up visits. Each chapter focuses on a single procedure and reviews all relevant anatomy, including target muscles and their functions and muscles to be avoided. Injection points and the injection Safety Zones are highlighted to help practitioners perform the procedures more effectively and minimize complication risks. Initial chapters cover treatment in the upper third of the face for frown lines, horizontal forehead lines, and crow's feet—procedures suited for practitioners who are getting started with cosmetic botulinum toxin treatments. Subsequent chapters cover more advanced face and neck procedures and treatment of axillary hyperhidrosis.