Hair physiology and grooming

Human hair keratins consist of more than acidic and basic proteins which are expressed in various compartments of the hair follicle. This chapter reviews the physiology of hair, grooming techniques including the science and use of shampoos, conditioners, and hair camouflage techniques. The hair follicle generates a complex fiber which may be straight, curly, or somewhere in between. Cleaning hair is viewed as a complex task because of the area that needs to be treated. Anionic detergents have a negatively charged hydrophilic polar group and are quite good at removing sebum; however, they tend to leave hair rough, dull with frizz, and subject to static electricity. Natural detergents were used for hair cleansing in ancient times and more recently, botanically based hair products have become popular. Patients have a variety of options available to camouflage their hair loss, ranging from temporary to permanent techniques.