What must a cosmetology instructor include when teaching about the structure of the hair?

When teaching about the structure of hair, it is essential to provide a comprehensive understanding that includes information on hair composition, growth cycles, and types of hair. This breadth of knowledge allows students to grasp not only how hair is made up chemically and physically but also how it grows and the various classifications of hair types, which can affect styling and treatment choices.

Understanding hair composition involves discussing the elements such as keratin, moisture, and other protein structures that contribute to the overall characteristics of hair. The growth cycles—anagen, catagen, and telogen—are crucial for cosmetology professionals to comprehend because they influence when clients may experience shedding, how often hair should be trimmed, and the timing of treatments. Additionally, knowing the different types of hair, such as straight, wavy, curly, or coily, can inform suitable techniques and products that should be used for specific hair types.

In contrast, focusing only on physical characteristics or solely on styling techniques would provide an incomplete education that neglects the foundational science behind hair. Avoiding scientific terminology diminishes the opportunity for students to engage with the material at a deeper level, thereby limiting their professional development and capacity to communicate effectively with clients about their hair.