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collegechemistrystudent said:i read that donutting occurs because follicles in the center don't get as much blood as those on the outside. The same would occur if you took identical punches from balding hairs and switched them. This would show that the cutting of blood vessels, not the health of sebum glands, causes the donutting.
Just consider the actual reported facts of the matter concerning "doughnutting"?
If reduced circulation in the grafts is going to effect hair growth, this is going to happen right after the transplantation.
It could well be that this lack of circulation after transplantation is responsible for the shedding known as shock loss, right after the procedure.
But after that, the grafts produce healthy terminal hair all over.
http://www.hairlosstalk.com/discussions ... hp?t=17571
So there can be no circulation problem in these grafts after the initial healing, simple.
The long term balding in these grafts has nothing to do with hypoxia, the early studies clearly rule this out!