Laser Technician (International Board of Electrologist Certification) IBEC Board Practice Exam

The telogen phase is a critical stage in the hair growth cycle, primarily associated with hair shedding. During this phase, hair follicles are in a resting state, and the old hairs remain in the follicles but are not actively growing. Eventually, these hairs will naturally fall out to allow for new hair to replace them, which is a normal part of the hair growth cycle.

The telogen phase typically lasts for a few weeks to several months, depending on various factors including the individual's hair growth cycle, health, and genetics. It represents the final stage of the growth cycle before a new anagen phase begins, either leading to the shedding of hair or the reactivation of follicular activity.

Understanding this phase is crucial because it informs laser technicians and other hair removal professionals about the timing and effectiveness of treatments, particularly since hair in the telogen phase is less responsive to treatments compared to hair in the active growth phase (anagen).