Which phase of hair growth is characterized by active hair growth?

The anagen phase is the stage of hair growth during which the hair follicles are actively producing hair. This phase can last for several years, depending on the individual and the specific hair type. During the anagen phase, cells in the hair follicle are rapidly dividing, leading to the formation of new hair. It is the most critical phase for achieving longer hair growth and is often referred to as the "growth phase."

The other phases—telogen, catagen, and resting—are involved in different aspects of the hair cycle. In the telogen phase, the hair is in a resting state, and no new growth occurs; during this time, hair may naturally shed. The catagen phase is a transitional stage where growth slows down and hair prepares for shedding. The term “resting phase” is not commonly used in the context of the hair growth cycle and can lead to confusion as it does not accurately define any of the recognized phases.

Understanding the characteristics of the anagen phase is crucial for various hair removal methods and hair restoration techniques, as interventions are most effective when a hair is in its active growth phase.