What is the name of the transition phase of hair growth?

The transition phase of hair growth is called catagen. This phase follows the anagen phase, where active hair growth occurs, and it precedes the telogen phase, which is the resting phase of hair growth. During catagen, the hair follicle shrinks and detaches from the hair bulb, leading to the eventual shedding of hair. This phase typically lasts a few weeks and signifies a critical point in the hair growth cycle, as it marks the end of growth for the hair strand and prepares it for eventual loss. Understanding the phases of hair growth, including catagen, is essential for those in the cosmetology field, as it informs hair care and treatment practices.