Which phase of hair growth is considered to be the active stage?

The active stage of hair growth is known as the Anagen phase. During this phase, hair follicles are actively producing new hair, leading to the growth of long and healthy strands. It is the longest phase of the hair growth cycle, typically lasting several years, during which the hair is firmly anchored in the scalp and is continually growing.

In the Anagen phase, the cells in the hair bulb rapidly divide, pushing the hair shaft upward. The health and vitality of the hair are largely determined by the duration and effectiveness of this phase, as it sets the foundation for healthy hair growth.

Other phases such as Telogen and Catagen are transitional or resting phases where hair growth is either halted or significantly slowed down, which is why they do not represent active hair growth. The Lag phase refers to a period of dormancy before hair starts to grow, but it is not a recognized term in the standard hair growth cycle. Understanding the Anagen phase is crucial for anyone in the field of hair health and treatments.