What does the term "anagen" refer to in hair growth cycles?

The term "anagen" refers to the active growth phase of hair, during which the hair follicles are actively producing hair strands. This is the most critical phase of the hair growth cycle, as it determines the length and thickness of the hair. During the anagen phase, which can last several years depending on genetic factors and the type of hair, the hair cells divide rapidly, contributing to hair elongation.

In this phase, the hair is deeply anchored in the follicle, receiving nourishment and support from the surrounding tissues. The duration of the anagen phase can vary; for example, scalp hair typically remains in this phase much longer than body hair, leading to more prolonged growth in scalp hair. Understanding the anagen phase is vital in hair removal practices, as it is the optimal time for techniques aimed at effectively disrupting hair growth.