What is the growth phase of hair called in the hair growth cycle?

The growth phase of hair in the hair growth cycle is referred to as the anagen phase. During this phase, hair actively grows and can last for several years, depending on the individual. This is when the hair follicle is deeply entrenched, nourishing the hair and allowing for significant length to be achieved. The anagen phase can vary in duration from two to seven years or longer for some people, which is why individuals may experience different lengths of hair.

In contrast, the other phases serve different functions in the hair cycle. The telogen phase, for example, is the resting phase where hair does not grow but remains attached to the follicle for about three months before shedding. The exogen phase is when the old hair falls out and is later replaced by new hair. The catagen phase is a transitional phase where hair growth slows, and the follicle starts to shrink, marking the end of the growth cycle. Understanding these distinct phases is crucial for professionals in the field, particularly when considering hair removal techniques and their effects on the hair growth cycle.