Hair Structure and Chemistry Simplified, fourth edition, explains the language of cosmetic chemistry in a straightforward and easy-to-follow format. It provides students with a solid understanding of the chemical tools associated with hair services, such as hair colorants, permanent wave solutions, chemical hair relaxers and more. Written in a clear and concise manner, this text takes the guesswork out of product ingredients and contains comprehensive information on the latest products available. To help students perform accurate and consistent chemical services, resulting in quality salon services.