PSI Barbering Practice Exam

During which cycle of hair growth does new hair develop?

1. Anagen

2. Catagen

3. Telogen

4. Cycling

The correct answer is: Anagen

The correct choice is the anagen phase, which is the active growth phase of hair follicles. During this cycle, cells in the hair bulb undergo rapid division, resulting in the formation of new hair fibers that push the older hair up and ultimately out of the follicle. This phase typically lasts several years, depending on various factors including genetics and health. The other phases play different roles in the hair growth cycle. The catagen phase is a transitional stage that follows anagen, where hair growth slows and the hair follicle shrinks, leading to a cessation of growth. The telogen phase is the resting phase, where the hair is not actively growing and may eventually fall out. Cycling is not a recognized phase but rather refers to the entire process of hair growth and the transitions between these phases.