ABSTRACT
An understanding of hair cosmetics is valuable when diagnosing and treating hair diseases. Hair cosmetics can be helpful in camouflaging hair loss by optimizing the appearance of existing hair; however, hair cosmetics may also be the cause of hair loss when improperly used or used to excess. The primary goal of this chapter is to help the reader understand how shampoos and conditioners can be incorporated into a treatment algorithm for patients undergoing hair disease treatment. The secondary goal of this chapter is to understand hair loss precipitated by hair coloring, permanent waving, and hair straightening. While these procedures can beautify the hair or appeal to fashion concerns, they can also permanently damage the hair protein and produce premature hair breakage and loss. Hair care is important because damage to the non-living fiber is permanent until replaced by new growth, which takes time. Prevention of damage in the patient with thinning hair is paramount.
