That's always the cause
No? What this thing can do quite certainly at this point is provide some lasting immunity (possibility indefinitely) to vulnerable hair. Medication has literally nothing to do with any of it. Whether propecia works for you or not is irrelevant.
It doesn't work to counteract inflammation.
It works to supply hair vulnerable to shrinkage because of genetics with cells that don't suffer from the condition to prevent them from doing so.
But if this thing can't provide a lot of regrowth, which it honestly probably won't, then it's probably not a viable option for DUPA sufferers since like I said: The hair would be too far gone before you could make an accurate judgement of which follicles you need to harvest.
Prevention isn't possible if the disease has already come to pass.