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
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.
Hair follicle miniaturization
Biological Concepts
Hair follicle miniaturization is the progressive shrinking of hair follicles, resulting in thinner, shorter, and less pigmented hairs.
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.
