Hair Straightening and Hair Dyes: Facts and Controversies

Hair dyes and hair relaxers are hair care products commonly used to change hair color and shape, respectively. Very popular among patients, these products may be self-applied as a home care treatment or by a professional hair stylist at the hair salon. These products can cause adverse reactions, particularly after improper use. In this chapter, we discuss hair straightening products and hair dyes, their mode of action, recommendations, and possible side effects