There is only one way to define a real cure for hair loss. Whatever the procedure or product is, it must be able to grow HAIR AT WILL. By that, I mean to really qualify as a cure, rather than just a treatment, it must be 100% reliable and there should be no guessing. On a normal scalp (not a damaged or scarred scalp), it should have the ability to grow unlimited hair. I use the term “hair at will”, which means that if you use the treatment, it is guaranteed to grow hair, in direct proportion to how much treatment is received. That is, input must be directly proportional to output.
No treatment that works only on, say, 25% of the people, or works pretty well on 10%, great on 30%, and not at all on 60%, or anything like that, is a cure. Hair regrowth must be GUARANTEED, in proportion to how much treatment is received.
The problem with almost all the drugs, topicals, and chemicals we’re seeing under research is that, even from the start, the researchers are not guaranteeing that these things will work on everyone, or to the same extent on everyone.
A real cure has to work to the same extent on everyone.
I think only cell therapy with stem cells, or tissue engineering by creating proto-follicles – in other words, some type of cell-based treatment, will eventually guarantee a real cure.