What is the dormant or shedding phase of hair known as?

The dormant or shedding phase of hair is referred to as the telogen phase. This is a crucial stage in the hair growth cycle when the hair follicle is inactive and hair is shed. During this phase, which lasts for several weeks to months, the hair does not grow, and it is the end point of the hair's lifecycle. After this phase, new hair will begin to grow as the follicle enters the anagen phase again.

Understanding the stages of hair growth is important in hair removal theory, as treatments may be more or less effective depending on which phase the hair is in. The telogen phase is particularly relevant for practitioners, as effective hair removal is best achieved when the hair is in the anagen phase rather than the telogen phase where shedding occurs.