Autoimmune and scarring forms of hair loss are related to immune system dysregulation attacking hair follicles, often triggered by environmental factors and gut dysbiosis.

“those more so relate to dysregulations to the immune function of the follicle themselves the collapse of immune privilege so that the body begins to attack the hair follicles and the strongest evidence that we have behind these things is that there's some sort of environmental factor triggering them and it very closely corresponds to gut dysbiosis”