Pattern hair loss progression requires hair shedding as part of the natural hair cycle.

“the only way that pattern hair loss can progress is actually through hair shedding and we know this because if you measure the hairs affected by pattern hair loss from the tip all the way down to the root the diameter of the hair is exactly the same which shows that that hair is growing and not miniaturizing as it's actively growing rather what happens is that that hair sheds as a part of its natural hair cycle the old hair follicle degenerates as a part of its natural hair cycle and then a new hair follicle comes in to replace that hair follicle again this is all part of the natural hair cycle this happens all the time between 10 to 15 of our hairs shed on a regular basis and undergo this every single day”