What phase of hair growth is known as the active growth phase?

The active growth phase of hair is known as the anagen phase. During this phase, the hair follicles are actively producing new hair, and the hair itself grows longer. This stage lasts for several years, and the length of time a hair remains in the anagen phase varies among individuals and can be influenced by genetics, health, and other factors.

In contrast to the anagen phase, the catagen phase is a transitional phase where hair stops growing and detaches from the blood supply, leading to the hair shedding eventually. The telogen phase is the resting phase, where the hair is not actively growing, and the exogen phase involves the shedding of the hair. Thus, understanding the anagen phase is essential for grasping how hair growth cycles work and how they can be impacted by various treatments, including eyelash extensions.