Ddog, the effect of making one’s existing hair thicker will be the same or better in the end. It’s not necessary to create new hair if you can make your existing hair grow normally again. It will show off eventually.
If 10% of your own hair (which is invisible now cause it’s miniature) grow strong again (by using minoxidil or whatever) you’ll get the same result, visually, as if this 10% was brand new hair, don’t you think?
I mean, the miracle holy grail cure would be one that reawakened to full growth 100% of your mini follicles again.