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.
Dihydrotestosterone (DHT)
Biological Concepts
Dihydrotestosterone (DHT) is a potent androgen hormone linked to hair follicle miniaturization and androgenetic alopecia (AGA).
Hair cycle
Biological Concepts
The hair cycle refers to the continuous process of hair growth, regression, rest, and shedding through the anagen, catagen, telogen, and exogen phases.
Anagen phase
Biological Concepts
The anagen phase is the active growth stage of the hair cycle during which hair follicles produce new hair.
