What is the exogen phase?
The exogen phase is the part of the hair growth cycle when hair fibers are shed from the follicle as a natural renewal process.
Understanding the exogen phase is important for evaluating hair shedding patterns and timing intervention strategies, including red light therapy applications.
Red light therapy aims to stabilize follicular cycles, promoting quicker returns to the active anagen phase and minimizing excessive hair loss during exogen.
Related terms
Telogen phase
Biological Concepts
The telogen phase is the resting stage of the hair cycle when hair follicles are dormant before shedding and renewing their growth cycle.
Catagen phase
Biological Concepts
The catagen phase is a short transitional period in the hair growth cycle when active growth stops and the hair follicle prepares to shed.
Hair follicle miniaturization
Biological Concepts
Hair follicle miniaturization is the progressive shrinking of hair follicles, resulting in thinner, shorter, and less pigmented hairs.
Dihydrotestosterone (DHT)
Biological Concepts
Dihydrotestosterone (DHT) is a potent androgen hormone linked to hair follicle miniaturization and androgenetic alopecia (AGA).
