Part of the practical and dynamic Procedures in Cosmetic Dermatology Series, Botulinum Toxin, 4th Edition, brings physicians at all levels of experience up to speed with today's best injection techniques. This well-organized text provides current, authoritative guidance on popular procedures including masseter hypertrophy and darker skin types, the therapeutic uses of botulinum toxins, and their future in dermatology. The renowned author team of Drs. Jean Carruthers and Alastair Carruthers offers evidence-based, procedural how-to's and step-by-step advice on proper techniques, pitfalls, and tricks of the trade, so you can successfully incorporate the latest procedures into your practice.